So that's it from us. A great night for three of the Welsh rugby regions! Ospreys boost their chances of a home Pro12 semi-final with tonight's win over Glasgow.
Newport Gwent Dragons gain revenge for their European Challenge Cup semi-final defeat with a home win over Edinburgh. It was even a good night for a Welsh side not in action - Scarlets.
Tonight's victory for the Gwent side means that if Scarlets secure a bonus-point win over Cardiff Blues on Sunday, the Llanelli-based region will seal automatic European qualification.
Nos da!
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Well that was quite something from Ospreys, knocking Glasgow off the top of the Pro12 table.
Rob Dobbs tweets: "Great win for the Ospreys! C'mon!"
Joshua Crisp adds: "Awesome performance by Ospreys. Best region in Wales for a reason. Some fantastic players!"
Lize Xia is still raving about that Rhys Webb try: "Love the cheeky line out. Great win #Ospreys!!"
And let's not forget Dragons - "A good night for Welsh rugby!", says Rhys Norville. Spot on.
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Ospreys captain Alun Wyn Jones
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We were pretty fortunate a couple of things came off, but we knew if we stayed in the attacking third that we'd get something.
Home boost
Full-time: Ospreys 21-10 Glasgow
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Tonight's win puts Ospreys in a great position to seal a home semi-final in the Pro12 play-offs. To put the importance of this into perspective, no side has ever won a last four Pro12 play-off match away from home. Beat Connacht away in Galway and Ospreys will get that home draw.
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Ospreys man of the match Josh Matavesi
It was really tough, we knew what Glasgow were going to bring but we dug in well and showed some character.
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It's all about winning rugby now, it doesn't matter by how much.
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Jonathan Davies
Former Wales fly-half on Scrum V
Two lovely tries took the game away from Glasgow.
That's a big, big result for Ospreys and sets them up for the end of the season.
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Dafydd James
Former Wales and Lions wing
Dragons fully deserved it. There was only one team at the races.
They've redeemed themselves after that bitterly disappointing defeat in the European Challenge Cup semi-final.
Full-time
Ospreys 21-10 Glasgow
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A great win for Ospreys which sees them move above Glasgow to top the Pro12 for now. Both sides complete their league fixtures on Saturday 16 May, with the Welsh region away to Connacht, while Gregor Townsend's side host Ulster. The result also means that Steve Tandy's side maintain their unbeaten home record in the competition in 2014-15.
Full Time: Dragons 19-5 Edinburgh
Dragons players and fans had spoken before this match about wanting to avenge that European Challenge Cup semi-final thrashing by Edinburgh - and they did so with relative ease.
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They put the Scots under pressure for long periods and defended stoutly whenever the visitors mounted their rare attacks.
Scarlets will be delighted too, as this is a major blow for Edinburgh's hopes of finishing in sixth place in the Pro12 table, the last of the automatic Champions Cup qualifying spots.
Man of the Match
Ospreys - Josh Matavesi
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Try - Dragons 16-5 Edinburgh (Stuart McInally)
Edinburgh have a glimmer of hope as captain Stuart McInally plunges over from close range.
But with Tom Heatchote missing his conversion, it's a tall order for the Scots to come back.
Dragons 16-0 Edinburgh
As we enter the last five minutes or so - and perhaps a bit of stoppage time - the Dragons crowd are really getting behind their side.
Cries of 'Stand up for the men of Gwent' ring around Rodney Parade as Dragons players tackle themselves to a standstill to repel Edinburgh, who have still not scored a point this evening.
If the hosts can keep this up, you might even hear some Scarlets fans joining in with the Gwent-themed chants.
The rain is really lashing down now at the Liberty Stadium and handling errors are creeping into the match as a result. Can Ospreys make the most of a Glasgow spill from an attacking scrum in the visitors' 22? Yes! Glasgow are penalised and Dan Biggar slots over the penalty from in front of the posts.
Dragons 16-0 Edinburgh
Edinburgh seem determined to make this a nervous finale for Dragons as they take the ball into the hosts' 22.
Yet again, however, the Scots' handling lets them down as another pass goes to ground and Dragons have a scrum.
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Rhys Webb - Welsh wizard
The Ospreys scrum-half has scored 10 tries in 11 Pro12 starts...
Ospreys nearly make the most of a lucky bounce from Rhys Webb's kick. The ball evades Nikola Matawalu, Dan Biggar runs down the line but his pass fails to find Josh Matavesi who has three Glasgow defenders around him. Referee George Clancy has referred it to the TMO to see if there's an early tackle on Matavesi.
After a long look Mr Clancy and Derek Bevan decides there wasn't!!!
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Jonathan Davies
Former Wales fly-half on Scrum V
Ospreys need to keep switched on now.
Glasgow are a very capable side and can score a couple of tries very quickly.
No one wants to be travelling away in the play-offs. Home advantage is massive.
Converted try - Chris Fusaro, Con Duncan Weir
Ospreys 18-10 Glasgow
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Can anyone see the ball?Image caption: Can anyone see the ball?
What a response by Glasgow. The Scottish side's pack drive over from an attacking lineout with Chris Fusaro at the bottom of the pile and Duncan Weir adds the extras. Game on?
Dragons 16-0 Edinburgh
Dragons are camped inside Edinburgh's half again, and the Rodney Parade faithful are beginning to sense a win is on the cards.
Prop Phil Price has come on for Boris Stankovich, whose industrious display earned him hearty chants of 'Boris! Boris!' from the Dragons fans as he left the field.
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Jonathan Davies
Former Wales fly-half on Scrum V
That's a brilliant, brilliant try from Ospreys. Very well worked.
Rhys Webb's confidence is soaring. That is a player on top of his game to chip from that position. He's had a massive season.
It's a long way back now for Glasgow.
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There's plenty of love for the Ospreys on social media...
Gavin Brance tweets: "Rhys Webb has been unreal this season, what a player."
Rhian adds: "Oh how I've missed watching the Ospreys play! It's been a while!"
Darryl Lacey on Ben John's score: "Great play, great hands, great support, great try!"
Scrum-half Rhys Webb scores a spectacular individual try. He slices through the Glasgow defence from an attacking lineout before gathering his chip over the last defender Nikola Matawalu, to dive over for his 10th Pro12 try of the season. Dan Biggar adds the conversion.
Edinburgh resilience
Edinburgh may be down to 14 men with Willem Nel in the sin bin, but they've made their way into the Dragons' 22 and, were it not for a knock-on, they might have scored their first points of the evening.
As it is, that handling error has given the Dragons fans the chance to bellow their favourite chant 'He's knocked it on' to the tune of French national anthem Le Marseilles.
Missed penalty
Ospreys 11-3 Glasgow
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A shocking miss by Glasgow's Duncan Weir who hits the post from close range. Could that prove crucial?
Replacements
Glasgow
Ryan Wilson on for Josh Strauss
Fraser Brown on for Pat MacCarthur
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Jonathan Davies
Former Wales fly-half on Scrum V
I thought Ospreys had blown it with the two on one but that was a great inside ball from Matavesi and it was a very good finish.
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Dafydd James
Former Wales and Lions wing
It's a great opportunity for Dragons. They were seething after that Challenge Cup semi-final defeat, but they're putting Edinburgh to the sword here.
Converted Try Dragons 16-0 Edinburgh
We mentioned in the first half how the Dragons' rolling maul has been a weapon this season - and so it has proved once again.
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Jason Tovey adds the extrasImage caption: Jason Tovey adds the extras
With Edinburgh prop Willem Nel in the bin, Dragons took full advantage to send replacement hooker Hugh Gustafson barging over for a try converted by Jason Tovey.
Try - Ben John
Ospreys 11-3 Glasgow
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At last the breakthrough comes! A well worked try. The ball is spread wide to Josh Matavesi who manages to get a pass away to Ben John despite having three Glasgow defenders around him. John makes no mistake crashing over from close range. Dan Biggar misses the conversion.
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Jonathan Davies
Former Wales fly-half on Scrum V
That's all Ospreys need to do. Get good ball and good positions.
Conditions are worsening. It's not going to be classic, it's going to be tight.
Build the pressure and just keep the scoreboard ticking over.
Missed drop-goal
That is a poor miss from Jason Tovey. Dragons put Edinburgh under pressure once again, carrying the ball strongly and recycling the ball quickly.
Fly-half Tovey was then left with a seemingly simple drop-goal attempt, in front of the posts and just 20 metres out, but his attempt drifted wide.
Dragons 9-0 Edinburgh
If anyone is going to light this game up, it's going to be Dragons wing Hallam Amos.
The young Welsh international has sparked the hosts into life early in the second half with a neat chip and chase which has set Dragons up for an assault on the Edinburgh line.
Penalty
Ospreys 6-3 Glasgow
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Glasgow second row Jonny Gray is penalised for illegally handling the ball and Dan Biggar fires the Ospreys in front as the rain lashes down at the Liberty Stadium.
Replacement
Ospreys prop Dimitri Arhip is on for Aaron Jarvis
Second half under way
The second half has started at Rodney Parade. Dragons fans - and Scarlets supporters, of course - will have their fingers crossed the Gwent region can hold on to their lead.
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Dave Roberts has emailed us: "Enjoying the game but on the Dan Biggar TMO [decision] - the ref asked "any reason I cannot award a try". Is "inconclusive" a reason? If he'd said try / no try [I'd] fully understand but it seems the questions are now being merged into just passing the decision?"
Anyone else think there are issues with video referrals in rugby? On another note, which way is this Ospreys game going to go? And how about Dragons, are they creeping to victory against Edinburgh?
Ospreys have won four and drawn one in the Pro12 since their loss away against tonight's opponents Glasgow in February. The Welsh region were without many of their Wales internationals for that match including fly-half Dan Biggar. He went close in the first-half can he make the difference as both sides take to the field?
That was a messy half of rugby, with neither side playing with much fluency.
But Dragons won't be too bothered. They've controlled possession and, although their pressure has not yielded any tries, two penalties from Jason Tovey and one from Tom Prydie have given them a relatively comfortable lead.
With the likes of prolific wing Tim Visser in their ranks, Edinburgh are a threat at any point in the game. But they have been blunted so far by a determined Dragons side.
The Scarlets will be happy at the moment, though.
Half-time - Ospreys 3-3 Glasgow
A scrappy and tight first-half between the two title contenders with most of the action played between both 22m lines. Ospreys have dominated possession, but the Glasgow defence has held firm. Wing Nikola Matawalu has looked the most threatening player for the visitors and with a bit more composure could have claimed the first try of the match.
Drop-goal missed - Dan Biggar
The Ospreys fly-half hooks his effort just wide with the last action of the half.
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Dafydd James
Former Wales and Lions wing
They needed a couple more points going into the break and cometh the hours, cometh the man... Tom Prydie slots it over nonchalantly.
Penalty: Dragons 9-0 Edinburgh (Tom Prydie)
Tom Prydie has taken over the kicking duties for this attempt from Edinburgh's 10-metre line, and the full-back makes no mistake to end the first half on a positive note for the hosts.
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Dafydd James
Former Wales and Lions wing
It's a really scrappy affair, but we know Edinburgh are capable of striking from anywhere.
Dragons just need to be clinical, their defensive structure is very good.
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Their composure just needs to be a little bit better.
Dragons 6-0 Edinburgh (Tovey penalty)
This is heavy, unrelenting pressure from Dragons as they pound Edinburgh's try line.
But the Gwent region are frustrated by their opponents' stoic defending.
Dragons do, however, have a penalty in front of the posts, which Jason Tovey slots over with ease to double their lead.
Missed penalty - Ospreys 3-3 Glasgow
Glasgow's Stuart Hogg misses the chance to put his side back in front, hooking his effort wide of the left post.
Replacement
Jonathan Spratt comes on for Jeff Hassler for the Ospreys who leaves the field with a suspected hamstring injury. That must be disappointing for Canada back Hassler who was playing for the first time since October 2014 after a knee injury.
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Dafydd James
Former Wales and Lions wing
That was a great line from Nic Cudd, but he just didn't have the support.
Dragons really need to get something from all the pressure they've been putting on Edinburgh.
Ospreys 3-3 Glasgow - close call
Glasgow nearly score the first try. Wing Nikola Matawalu is first to Stuart Hogg's grubber kick but hacks the ball over the dead ball line with the try line at his mercy.
Dragons 3-0 Edinburgh - Cudd on the charge
Dragons flanker Nic Cudd has the crowd on its feet as he bursts clear into Edinburgh's 22.
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The covering Jack Cuthbert takes the ball into touch, giving Dragons a line-out just five metres out from the visitors' try line.
Ospreys on top?
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The scores are level but are Ospreys on top?Image caption: The scores are level but are Ospreys on top?
Dragons 3-0 Edinburgh
In what has been a disjointed match to date, Edinburgh number eight Cornell du Preez has sought to inject a little flamboyance into proceedings with a deft back-of-the-hand pass to winger Dougie Fife.
The move only amounted to a Dragons penalty, but du Preez's sleight of hand even drew admiring gasps from the partisan Rodney Parade crowd.
Biggar back on the field
Dan Biggar returns to the field in place of Sam Davies - that's good news for the Ospreys.
Dragons 3-0 Edinburgh: Scrum time worries
Scrums are often a mess, and the set-piece has disrupted play at Rodney Parade so far.
Dragons had a scrum in a promising position on the Edinburgh 22 but, following a pile-up of bodies, the ball squirmed out to an Edinburgh player and the visitors were able to clear. Scrappy stuff.
Penalty - Ospreys 3-3 Glasgow
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Dan Evans takes over the kicking duties from the injured Dan Biggar and makes no mistake, slotting his effort over comfortably.
Ouch - Dragons 3-0 Edinburgh
There's been a long delay at Rodney Parade as Dragons hooker T. Rhys Thomas appears to have dislocated his thumb.
The Welsh international is clearly made of tough stuff, playing on for a while - until he is eventually replaced by Hugh Gustafson.
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Jonathan Davies
Former Wales fly-half on Scrum V
We'll wait to see how Dan Biggar is assessed and whether he can come back, but he has a very able and confident replacement in Sam Davies.
Replacement
Sam Davies comes on for Ospreys fly-half Dan Biggar who is hurt as he tried to ground the ball. It's a shame Biggar couldn't get the ball down after a nice break.
No try
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After numerous replays from a variety of angles TMO Derek Bevan rules that Dan Biggar did not ground the ball.
Try review
Dan Biggar slices through the Glasgow defence and dives over the line but did he get the ball down? Rob Harley and Nikola Marawalu combine to try and stop him from grounding the ball. George Clancy refers the decision to the TMO.
Edinburgh warming to their task
Edinburgh are beginning to warm to their task at Rodney Parade, edging their way into Dragons territory.
The visitors have won two penalties from scrums, an area where they dismantled the Gwent region during last month's Challenge Cup semi-final.
But Dragons discipline is holding up and they are keeping Edinburgh at bay.
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Dafydd James
Former Wales and Lions wing
Great defence so far from Newport Gwent Dragons.
It's very tiring defending all the time but their structure looks very good.
They're suffocating Edinburgh at the moment, who are a bit devoid of ideas.
Penalty - Ospreys 0-3 Glasgow
Duncan Weir makes no mistake with his second effort from just outside the 22.
Missed penalty - Ospreys 0-0 Glasgow
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Tyler Ardron is penalised for infringing at a line out, but Glasgow's Duncan Weir's effort is just wide of the posts. The Scottish fly-half struggled to contend with the swirling wind at the Liberty Stadium.
Dragons 3-0 Edinburgh
Edinburgh were comprehensive 45-16 winners when these sides met in the Challenge Cup semi-finals three weeks ago, but the Scots have looked a little rusty so far.
The visitors have yet to create any scoring opportunities or keep possession for long periods, primarily because the fired-up Dragons have started this game in such tenacious fashion.
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Plenty of you seem to appreciate the magnitude of this game for Ospreys...
Anujan from London tweets: "Big game this, gotta do what you can #Ospreys"
The Swifts write: "Big game in #Pro12 tonight. Ospreys need home draw for semi final. Big ask to beat this Glasgow side at the moment though."
While Stuart Dempster is remembering days gone by: "Remember when #ospreys had a backline of Phillips, Hook, Williams, Henson, Bishop, Bowe and Byrne"
The strongest Ospreys' backline of all time, Stuart?
Let us know what you think by tweeting with #ScrumV, or email us.
Ospreys 0-0 Glasgow
The first real break of the game from the Ospreys as centre Josh Matavesi's offload releases Tyler Ardon just inside the Glasgow half. The forward is stopped inside the visitors' 22 and the Scots manage to turn the ball over and clear their lines from the next phase of play.
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Jonathan Davies
Former Wales fly-half on Scrum V
If Ospreys win this one, I fancy them to get a home tie in the play-offs.
Supporter taking the Liberty
The Ospreys have named their ground after one of their fans for tonight's clash. It will be called the Katie Phillips Stadium after the 18-year-old from the Mayals area of Swansea. She won a competition organised to celebrate the region's move to the venue 10 years ago.
Dragons 3-0 Edinburgh
Dragons have made an excellent start at Rodney Parade, close to scoring the opening try within two minutes.
After a rolling maul - which has been a potent weapon for Dragons this season - the hosts have gone close with powerful carries from Tyler Morgan and Taulupe Faletau, but Edinburgh are holding on for now.
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Colin Charvis on Ospreys flanker James King
Former Wales captain on Scrum V
Dan Lydiate's name is on the team sheet for Wales every game automatically and he was a great British and Irish Lion, but James King has been playing well for Ospreys and the rest of the team are probably so confident with the way the forwards are playing that to adopt him into the game won't be difficult at all.
I can't see them changing a thing about the way they play.
Penalty Dragons 3-0 Edinburgh
Dragons fly-half Jason Tovey makes no mistake with a short range penalty.
Kick-off - Ospreys v Glasgow
And we're off
Glasgow Warriors head coach Gregor Townsend:
"Ospreys are only four points behind and they too are playing for a home play-off, so we're expecting an extremely tough game at the Liberty Stadium.
"They have played at a consistently high level throughout the season and have a good balance in their play - a strong, aggressive defence allied to an excellent attacking game.
"We will need to put in one of our best performances of the season to come away with a positive result."
Dragons v Edinburgh
Both teams are out on the Rodney Parade pitch, with Newport Gwent Dragons entering the fray to a cacophony of fireworks and flames.
The players and their fans seem fired up, determined to avenge last month's crushing defeat to Edinburgh in the European Challenge Cup semi-final.
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Dafydd James on Newport Gwent Dragons
Former Wales and Lions wing
The Dragons were were hurt by that performance against Edinburgh in the European Challenge Cup. They need to bounce back after that humiliation.
I spoke to coach Kingsley Jones just before the game tonight and he thought there was a good buzz and atmosphere amongst the players.
They're looking a bit psyched up.
Battle of the boots - Ospreys v Glasgow (kick-off 19:35 BST)
Rodney Parade is not an inviting place on a wet eveningImage caption: Rodney Parade is not an inviting place on a wet evening
Matches in May can often be entertaining affairs, as teams make use of the springtime sunshine and firm surfaces to play expansive, carefree rugby.
That might not be the case tonight as Newport Gwent Dragons host Edinburgh at Rodney Parade, which is grey and dank after a day of unseasonably heavy rain.
The home side have revenge on their minds after they were hammered 45-16 by Edinburgh in last month's European Challenge Cup semi-final.
If Dragons can avenge that mauling with a victory this evening, they would be doing Scarlets a huge favour.
Scarlets are currently sixth in the Pro12 table, the last of the automatic qualifying spots for the European Champions Cup, and just one point ahead of Edinburgh in seventh.
So a large part of west Wales - as well as the east - will be cheering on the Gwent region tonight.
Revenge bid - NG Dragons v Edinburgh (Kick-off 19:30 BST)
Meanwhile at Rodney Parade Newport Gwent Dragons are out to get their own back on Edinburgh just three weeks after the Scottish sides trounced them 45-16 in the semi-final of the European Challenge Cup. Defeat for Edinburgh could prove a fatal blow for their hopes of finishing sixth in the last automatic spot for Champions Cup qualification.
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Title clash - Ospreys v Glasgow (Kick-off 19:35 BST)
Fourth placed Ospreys host Pro12 leaders Glasgow at the Liberty Stadium with both sides battling to secure a place in the top two to ensure a home semi-final tie in the play-offs. A top two finish would be a big step towards reaching the final given that both are unbeaten in the Pro12 at home in 2014-15. Ospreys have not lost in the league at the Liberty Stadium since February 2014 against Munster.
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Hello, and good evening!
Scotland has been in the limelight over the past 24 hours following the General Election results, but in tonight's Pro12 rugby action will the spotlight swing to shine on the two Welsh sides against their Scottish opponents?
Follow the action here, and let us know what you think. Get involved on Twitter using #ScrumV, or email us on scrumv@bbc.co.uk - but, as always, remember to include your name and location. Diolch!
NG Dragons v Edinburgh - the line-ups
NG Dragons: Tom Prydie; Ashton Hewitt, Tyler Morgan, Jack Dixon, Hallam Amos; Jason Tovey, Luc Jones; Phil Price, T. Rhys Thomas (capt), Brok Harris, Cory Hill, Rynard Landman, Nick Crosswell, Nic Cudd, Taulupe Faletau.
Replacements: Hugh Gustafson, Lloyd Fairbrother, Dan Way, James Thomas, Ollie Griffiths, Richie Rees, Dorian Jones, Geraint Rhys Jones.
Edinburgh: Jack Cuthbert; Dougie Fife, Sam Beard, Andries Strauss, Tim Visser; Phil Burleigh, Sam Hidalgo-Clyne; Alasdair Dickinson, Ross Ford, WP Nel, Fraser McKenzie, Ben Toolis, Stuart McInally (capt), Hamish Watson, Cornell Du Preez.
Replacements: Neil Cochrane, Rory Sutherland, John Andress, Anton Bresler, Roddy Grant, Nathan Fowles, Tom Heathcote, Tom Brown.
Referee: Gary Conway (IRFU)
Assistant referees: Rhys Thomas, Ben Whitehouse (WRU)
Citing commissioner: Jeff Mark (WRU)
TMO: Gareth Simmonds (WRU)
Ospreys v Glasgow - the line-ups
Ospreys: Dan Evans; Jeff Hassler, Ben John, Josh Matavesi, Eli Walker; Dan Biggar, Rhys Webb; Nicky Smith, Scott Baldwin, Aaron Jarvis, Tyler Ardron, Alun Wyn Jones (capt), James King, Justin Tipuric, Dan Baker.
Replacements: Sam Parry, Marc Thomas, Dmitri Arhip, Rory Thornton, Dan Lydiate, Tom Habberfield, Sam Davies, Jonathan Spratt.
Glasgow Warriors: Stuart Hogg; Tommy Seymour, Richie Vernon, Peter Horne, Niko Matawalu; Duncan Weir, Henry Pyrgos; Ryan Grant, Pat MacArthur, Jon Welsh, Tim Swinson, Jonny Gray, Rob Harley, Chris Fusaro, Josh Strauss (Captain)
Replacements Fraser Brown, Gordon Reid, Euan Murray, Leone Nakarawa, Ryan Wilson, Lee Jones, Fraser Lyle, Peter Murchie.
Referee: George Clancy (IRFU)
Assistant Referees: Neil Hennessy, Martyn Lewis (WRU)
Live Reporting
Rob Westall, Dafydd Pritchard and Owen Rawlings
All times stated are UK
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Latest PostGoodnight
So that's it from us. A great night for three of the Welsh rugby regions! Ospreys boost their chances of a home Pro12 semi-final with tonight's win over Glasgow.
Newport Gwent Dragons gain revenge for their European Challenge Cup semi-final defeat with a home win over Edinburgh. It was even a good night for a Welsh side not in action - Scarlets.
Tonight's victory for the Gwent side means that if Scarlets secure a bonus-point win over Cardiff Blues on Sunday, the Llanelli-based region will seal automatic European qualification.
Nos da!
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Well that was quite something from Ospreys, knocking Glasgow off the top of the Pro12 table.
Rob Dobbs tweets: "Great win for the Ospreys! C'mon!"
Joshua Crisp adds: "Awesome performance by Ospreys. Best region in Wales for a reason. Some fantastic players!"
Lize Xia is still raving about that Rhys Webb try: "Love the cheeky line out. Great win #Ospreys!!"
And let's not forget Dragons - "A good night for Welsh rugby!", says Rhys Norville. Spot on.
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Ospreys captain Alun Wyn Jones
We were pretty fortunate a couple of things came off, but we knew if we stayed in the attacking third that we'd get something.
Home boost
Full-time: Ospreys 21-10 Glasgow
Tonight's win puts Ospreys in a great position to seal a home semi-final in the Pro12 play-offs. To put the importance of this into perspective, no side has ever won a last four Pro12 play-off match away from home. Beat Connacht away in Galway and Ospreys will get that home draw.
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Ospreys man of the match Josh Matavesi
It was really tough, we knew what Glasgow were going to bring but we dug in well and showed some character.
It's all about winning rugby now, it doesn't matter by how much.
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Jonathan Davies
Former Wales fly-half on Scrum V
Two lovely tries took the game away from Glasgow.
That's a big, big result for Ospreys and sets them up for the end of the season.
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Dafydd James
Former Wales and Lions wing
Dragons fully deserved it. There was only one team at the races.
They've redeemed themselves after that bitterly disappointing defeat in the European Challenge Cup semi-final.
Full-time
Ospreys 21-10 Glasgow
A great win for Ospreys which sees them move above Glasgow to top the Pro12 for now. Both sides complete their league fixtures on Saturday 16 May, with the Welsh region away to Connacht, while Gregor Townsend's side host Ulster. The result also means that Steve Tandy's side maintain their unbeaten home record in the competition in 2014-15.
Full Time: Dragons 19-5 Edinburgh
Dragons players and fans had spoken before this match about wanting to avenge that European Challenge Cup semi-final thrashing by Edinburgh - and they did so with relative ease.
They put the Scots under pressure for long periods and defended stoutly whenever the visitors mounted their rare attacks.
Scarlets will be delighted too, as this is a major blow for Edinburgh's hopes of finishing in sixth place in the Pro12 table, the last of the automatic Champions Cup qualifying spots.
Man of the Match
Ospreys - Josh Matavesi
Try - Dragons 16-5 Edinburgh (Stuart McInally)
Edinburgh have a glimmer of hope as captain Stuart McInally plunges over from close range.
But with Tom Heatchote missing his conversion, it's a tall order for the Scots to come back.
Dragons 16-0 Edinburgh
As we enter the last five minutes or so - and perhaps a bit of stoppage time - the Dragons crowd are really getting behind their side.
Cries of 'Stand up for the men of Gwent' ring around Rodney Parade as Dragons players tackle themselves to a standstill to repel Edinburgh, who have still not scored a point this evening.
If the hosts can keep this up, you might even hear some Scarlets fans joining in with the Gwent-themed chants.
Penalty
Ospreys 21-10 Glasgow
The rain is really lashing down now at the Liberty Stadium and handling errors are creeping into the match as a result. Can Ospreys make the most of a Glasgow spill from an attacking scrum in the visitors' 22? Yes! Glasgow are penalised and Dan Biggar slots over the penalty from in front of the posts.
Dragons 16-0 Edinburgh
Edinburgh seem determined to make this a nervous finale for Dragons as they take the ball into the hosts' 22.
Yet again, however, the Scots' handling lets them down as another pass goes to ground and Dragons have a scrum.
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Rhys Webb - Welsh wizard
The Ospreys scrum-half has scored 10 tries in 11 Pro12 starts...
Could he be Wales' main man at September's Rugby World Cup?
Gareth Davies thinks so: "Best nine around at the moment! Wales' key player at RWC!"
Daniel Jenkins says: "Rhys Webb is some player when he's got some confidence! #tryscoringmachine"
Dale Riley adds: "He is such a talented player, makes it all look so easy."
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Replacement
Ospreys
Sam Parry on for hooker Scott Baldwin
Lucky bounce
Ospreys 18-10 Glasgow
Ospreys nearly make the most of a lucky bounce from Rhys Webb's kick. The ball evades Nikola Matawalu, Dan Biggar runs down the line but his pass fails to find Josh Matavesi who has three Glasgow defenders around him. Referee George Clancy has referred it to the TMO to see if there's an early tackle on Matavesi.
After a long look Mr Clancy and Derek Bevan decides there wasn't!!!
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Jonathan Davies
Former Wales fly-half on Scrum V
Ospreys need to keep switched on now.
Glasgow are a very capable side and can score a couple of tries very quickly.
No one wants to be travelling away in the play-offs. Home advantage is massive.
Converted try - Chris Fusaro, Con Duncan Weir
Ospreys 18-10 Glasgow
What a response by Glasgow. The Scottish side's pack drive over from an attacking lineout with Chris Fusaro at the bottom of the pile and Duncan Weir adds the extras. Game on?
Dragons 16-0 Edinburgh
Dragons are camped inside Edinburgh's half again, and the Rodney Parade faithful are beginning to sense a win is on the cards.
Prop Phil Price has come on for Boris Stankovich, whose industrious display earned him hearty chants of 'Boris! Boris!' from the Dragons fans as he left the field.
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Jonathan Davies
Former Wales fly-half on Scrum V
That's a brilliant, brilliant try from Ospreys. Very well worked.
Rhys Webb's confidence is soaring. That is a player on top of his game to chip from that position. He's had a massive season.
It's a long way back now for Glasgow.
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There's plenty of love for the Ospreys on social media...
Gavin Brance tweets: "Rhys Webb has been unreal this season, what a player."
Rhian adds: "Oh how I've missed watching the Ospreys play! It's been a while!"
Darryl Lacey on Ben John's score: "Great play, great hands, great support, great try!"
Join the debate by using #ScrumV, or email us,.
Converted try - Rhys Webb, con Dan Biggar
Ospreys 18-3 Glasgow
Scrum-half Rhys Webb scores a spectacular individual try. He slices through the Glasgow defence from an attacking lineout before gathering his chip over the last defender Nikola Matawalu, to dive over for his 10th Pro12 try of the season. Dan Biggar adds the conversion.
Edinburgh resilience
Edinburgh may be down to 14 men with Willem Nel in the sin bin, but they've made their way into the Dragons' 22 and, were it not for a knock-on, they might have scored their first points of the evening.
As it is, that handling error has given the Dragons fans the chance to bellow their favourite chant 'He's knocked it on' to the tune of French national anthem Le Marseilles.
Missed penalty
Ospreys 11-3 Glasgow
A shocking miss by Glasgow's Duncan Weir who hits the post from close range. Could that prove crucial?
Replacements
Glasgow
Ryan Wilson on for Josh Strauss
Fraser Brown on for Pat MacCarthur
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Jonathan Davies
Former Wales fly-half on Scrum V
I thought Ospreys had blown it with the two on one but that was a great inside ball from Matavesi and it was a very good finish.
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Dafydd James
Former Wales and Lions wing
It's a great opportunity for Dragons. They were seething after that Challenge Cup semi-final defeat, but they're putting Edinburgh to the sword here.
Converted Try Dragons 16-0 Edinburgh
We mentioned in the first half how the Dragons' rolling maul has been a weapon this season - and so it has proved once again.
With Edinburgh prop Willem Nel in the bin, Dragons took full advantage to send replacement hooker Hugh Gustafson barging over for a try converted by Jason Tovey.
Try - Ben John
Ospreys 11-3 Glasgow
At last the breakthrough comes! A well worked try. The ball is spread wide to Josh Matavesi who manages to get a pass away to Ben John despite having three Glasgow defenders around him. John makes no mistake crashing over from close range. Dan Biggar misses the conversion.
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Jonathan Davies
Former Wales fly-half on Scrum V
That's all Ospreys need to do. Get good ball and good positions.
Conditions are worsening. It's not going to be classic, it's going to be tight.
Build the pressure and just keep the scoreboard ticking over.
Missed drop-goal
That is a poor miss from Jason Tovey. Dragons put Edinburgh under pressure once again, carrying the ball strongly and recycling the ball quickly.
Fly-half Tovey was then left with a seemingly simple drop-goal attempt, in front of the posts and just 20 metres out, but his attempt drifted wide.
Dragons 9-0 Edinburgh
If anyone is going to light this game up, it's going to be Dragons wing Hallam Amos.
The young Welsh international has sparked the hosts into life early in the second half with a neat chip and chase which has set Dragons up for an assault on the Edinburgh line.
Penalty
Ospreys 6-3 Glasgow
Glasgow second row Jonny Gray is penalised for illegally handling the ball and Dan Biggar fires the Ospreys in front as the rain lashes down at the Liberty Stadium.
Replacement
Ospreys prop Dimitri Arhip is on for Aaron Jarvis
Second half under way
The second half has started at Rodney Parade. Dragons fans - and Scarlets supporters, of course - will have their fingers crossed the Gwent region can hold on to their lead.
Get involved
Dave Roberts has emailed us: "Enjoying the game but on the Dan Biggar TMO [decision] - the ref asked "any reason I cannot award a try". Is "inconclusive" a reason? If he'd said try / no try [I'd] fully understand but it seems the questions are now being merged into just passing the decision?"
Anyone else think there are issues with video referrals in rugby? On another note, which way is this Ospreys game going to go? And how about Dragons, are they creeping to victory against Edinburgh?
Join the debate by emailing us or tweet using #ScrumV.
Kick-off
Ospreys 3-3 Glasgow
Dan Biggar gets the second half under way.
Ospreys and Wales points machine
Ospreys have won four and drawn one in the Pro12 since their loss away against tonight's opponents Glasgow in February. The Welsh region were without many of their Wales internationals for that match including fly-half Dan Biggar. He went close in the first-half can he make the difference as both sides take to the field?
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Ospreys captain Alun Wyn Jones
It's pretty attritional. We probably feel we're just edging it but when we're in the attacking third we're just coughing it up a bit.
It's essentially 0-0.
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What do you reckon then Ospreys fans? Plenty of pressure from the Welsh region but nothing to split the two teams yet...
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Half-time: Dragons 9-0 Edinburgh
That was a messy half of rugby, with neither side playing with much fluency.
But Dragons won't be too bothered. They've controlled possession and, although their pressure has not yielded any tries, two penalties from Jason Tovey and one from Tom Prydie have given them a relatively comfortable lead.
With the likes of prolific wing Tim Visser in their ranks, Edinburgh are a threat at any point in the game. But they have been blunted so far by a determined Dragons side.
The Scarlets will be happy at the moment, though.
Half-time - Ospreys 3-3 Glasgow
A scrappy and tight first-half between the two title contenders with most of the action played between both 22m lines. Ospreys have dominated possession, but the Glasgow defence has held firm. Wing Nikola Matawalu has looked the most threatening player for the visitors and with a bit more composure could have claimed the first try of the match.
Drop-goal missed - Dan Biggar
The Ospreys fly-half hooks his effort just wide with the last action of the half.
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Dafydd James
Former Wales and Lions wing
They needed a couple more points going into the break and cometh the hours, cometh the man... Tom Prydie slots it over nonchalantly.
Penalty: Dragons 9-0 Edinburgh (Tom Prydie)
Tom Prydie has taken over the kicking duties for this attempt from Edinburgh's 10-metre line, and the full-back makes no mistake to end the first half on a positive note for the hosts.
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Dafydd James
Former Wales and Lions wing
It's a really scrappy affair, but we know Edinburgh are capable of striking from anywhere.
Dragons just need to be clinical, their defensive structure is very good.
Their composure just needs to be a little bit better.
Dragons 6-0 Edinburgh (Tovey penalty)
This is heavy, unrelenting pressure from Dragons as they pound Edinburgh's try line.
But the Gwent region are frustrated by their opponents' stoic defending.
Dragons do, however, have a penalty in front of the posts, which Jason Tovey slots over with ease to double their lead.
Missed penalty - Ospreys 3-3 Glasgow
Glasgow's Stuart Hogg misses the chance to put his side back in front, hooking his effort wide of the left post.
Replacement
Jonathan Spratt comes on for Jeff Hassler for the Ospreys who leaves the field with a suspected hamstring injury. That must be disappointing for Canada back Hassler who was playing for the first time since October 2014 after a knee injury.
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Dafydd James
Former Wales and Lions wing
That was a great line from Nic Cudd, but he just didn't have the support.
Dragons really need to get something from all the pressure they've been putting on Edinburgh.
Ospreys 3-3 Glasgow - close call
Glasgow nearly score the first try. Wing Nikola Matawalu is first to Stuart Hogg's grubber kick but hacks the ball over the dead ball line with the try line at his mercy.
Dragons 3-0 Edinburgh - Cudd on the charge
Dragons flanker Nic Cudd has the crowd on its feet as he bursts clear into Edinburgh's 22.
The covering Jack Cuthbert takes the ball into touch, giving Dragons a line-out just five metres out from the visitors' try line.
Ospreys on top?
Dragons 3-0 Edinburgh
In what has been a disjointed match to date, Edinburgh number eight Cornell du Preez has sought to inject a little flamboyance into proceedings with a deft back-of-the-hand pass to winger Dougie Fife.
The move only amounted to a Dragons penalty, but du Preez's sleight of hand even drew admiring gasps from the partisan Rodney Parade crowd.
Biggar back on the field
Dan Biggar returns to the field in place of Sam Davies - that's good news for the Ospreys.
Dragons 3-0 Edinburgh: Scrum time worries
Scrums are often a mess, and the set-piece has disrupted play at Rodney Parade so far.
Dragons had a scrum in a promising position on the Edinburgh 22 but, following a pile-up of bodies, the ball squirmed out to an Edinburgh player and the visitors were able to clear. Scrappy stuff.
Penalty - Ospreys 3-3 Glasgow
Dan Evans takes over the kicking duties from the injured Dan Biggar and makes no mistake, slotting his effort over comfortably.
Ouch - Dragons 3-0 Edinburgh
There's been a long delay at Rodney Parade as Dragons hooker T. Rhys Thomas appears to have dislocated his thumb.
The Welsh international is clearly made of tough stuff, playing on for a while - until he is eventually replaced by Hugh Gustafson.
Post update
Jonathan Davies
Former Wales fly-half on Scrum V
We'll wait to see how Dan Biggar is assessed and whether he can come back, but he has a very able and confident replacement in Sam Davies.
Replacement
Sam Davies comes on for Ospreys fly-half Dan Biggar who is hurt as he tried to ground the ball. It's a shame Biggar couldn't get the ball down after a nice break.
No try
After numerous replays from a variety of angles TMO Derek Bevan rules that Dan Biggar did not ground the ball.
Try review
Dan Biggar slices through the Glasgow defence and dives over the line but did he get the ball down? Rob Harley and Nikola Marawalu combine to try and stop him from grounding the ball. George Clancy refers the decision to the TMO.
Edinburgh warming to their task
Edinburgh are beginning to warm to their task at Rodney Parade, edging their way into Dragons territory.
The visitors have won two penalties from scrums, an area where they dismantled the Gwent region during last month's Challenge Cup semi-final.
But Dragons discipline is holding up and they are keeping Edinburgh at bay.
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Dafydd James
Former Wales and Lions wing
Great defence so far from Newport Gwent Dragons.
It's very tiring defending all the time but their structure looks very good.
They're suffocating Edinburgh at the moment, who are a bit devoid of ideas.
Penalty - Ospreys 0-3 Glasgow
Duncan Weir makes no mistake with his second effort from just outside the 22.
Missed penalty - Ospreys 0-0 Glasgow
Tyler Ardron is penalised for infringing at a line out, but Glasgow's Duncan Weir's effort is just wide of the posts. The Scottish fly-half struggled to contend with the swirling wind at the Liberty Stadium.
Dragons 3-0 Edinburgh
Edinburgh were comprehensive 45-16 winners when these sides met in the Challenge Cup semi-finals three weeks ago, but the Scots have looked a little rusty so far.
The visitors have yet to create any scoring opportunities or keep possession for long periods, primarily because the fired-up Dragons have started this game in such tenacious fashion.
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Plenty of you seem to appreciate the magnitude of this game for Ospreys...
Anujan from London tweets: "Big game this, gotta do what you can #Ospreys"
The Swifts write: "Big game in #Pro12 tonight. Ospreys need home draw for semi final. Big ask to beat this Glasgow side at the moment though."
While Stuart Dempster is remembering days gone by: "Remember when #ospreys had a backline of Phillips, Hook, Williams, Henson, Bishop, Bowe and Byrne"
The strongest Ospreys' backline of all time, Stuart?
Let us know what you think by tweeting with #ScrumV, or email us.
Ospreys 0-0 Glasgow
The first real break of the game from the Ospreys as centre Josh Matavesi's offload releases Tyler Ardon just inside the Glasgow half. The forward is stopped inside the visitors' 22 and the Scots manage to turn the ball over and clear their lines from the next phase of play.
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Jonathan Davies
Former Wales fly-half on Scrum V
If Ospreys win this one, I fancy them to get a home tie in the play-offs.
Supporter taking the Liberty
The Ospreys have named their ground after one of their fans for tonight's clash. It will be called the Katie Phillips Stadium after the 18-year-old from the Mayals area of Swansea. She won a competition organised to celebrate the region's move to the venue 10 years ago.
Dragons 3-0 Edinburgh
Dragons have made an excellent start at Rodney Parade, close to scoring the opening try within two minutes.
After a rolling maul - which has been a potent weapon for Dragons this season - the hosts have gone close with powerful carries from Tyler Morgan and Taulupe Faletau, but Edinburgh are holding on for now.
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Colin Charvis on Ospreys flanker James King
Former Wales captain on Scrum V
Dan Lydiate's name is on the team sheet for Wales every game automatically and he was a great British and Irish Lion, but James King has been playing well for Ospreys and the rest of the team are probably so confident with the way the forwards are playing that to adopt him into the game won't be difficult at all.
I can't see them changing a thing about the way they play.
Penalty Dragons 3-0 Edinburgh
Dragons fly-half Jason Tovey makes no mistake with a short range penalty.
Kick-off - Ospreys v Glasgow
And we're off
Glasgow Warriors head coach Gregor Townsend:
"Ospreys are only four points behind and they too are playing for a home play-off, so we're expecting an extremely tough game at the Liberty Stadium.
"They have played at a consistently high level throughout the season and have a good balance in their play - a strong, aggressive defence allied to an excellent attacking game.
"We will need to put in one of our best performances of the season to come away with a positive result."
Dragons v Edinburgh
Both teams are out on the Rodney Parade pitch, with Newport Gwent Dragons entering the fray to a cacophony of fireworks and flames.
The players and their fans seem fired up, determined to avenge last month's crushing defeat to Edinburgh in the European Challenge Cup semi-final.
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Dafydd James on Newport Gwent Dragons
Former Wales and Lions wing
The Dragons were were hurt by that performance against Edinburgh in the European Challenge Cup. They need to bounce back after that humiliation.
I spoke to coach Kingsley Jones just before the game tonight and he thought there was a good buzz and atmosphere amongst the players.
They're looking a bit psyched up.
Battle of the boots - Ospreys v Glasgow (kick-off 19:35 BST)
If it comes down to kicks, both the Ospreys and Warriors are both well equipped to win.
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There are just two games to go in the Pro12 and there's still plenty to play for.
Can Ospreys beat Glasgow and go top of the table with one game to go?
And what about Dragons? Lose tonight and it's three successive defeats with just a trip to Munster to come...
Join the debate and get involved by tweeting using #scrumv, or email us.
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Dafydd Pritchard
BBC Wales Sport at Rodney Parade
Matches in May can often be entertaining affairs, as teams make use of the springtime sunshine and firm surfaces to play expansive, carefree rugby.
That might not be the case tonight as Newport Gwent Dragons host Edinburgh at Rodney Parade, which is grey and dank after a day of unseasonably heavy rain.
The home side have revenge on their minds after they were hammered 45-16 by Edinburgh in last month's European Challenge Cup semi-final.
If Dragons can avenge that mauling with a victory this evening, they would be doing Scarlets a huge favour.
Scarlets are currently sixth in the Pro12 table, the last of the automatic qualifying spots for the European Champions Cup, and just one point ahead of Edinburgh in seventh.
So a large part of west Wales - as well as the east - will be cheering on the Gwent region tonight.
Revenge bid - NG Dragons v Edinburgh (Kick-off 19:30 BST)
Meanwhile at Rodney Parade Newport Gwent Dragons are out to get their own back on Edinburgh just three weeks after the Scottish sides trounced them 45-16 in the semi-final of the European Challenge Cup. Defeat for Edinburgh could prove a fatal blow for their hopes of finishing sixth in the last automatic spot for Champions Cup qualification.
Title clash - Ospreys v Glasgow (Kick-off 19:35 BST)
Fourth placed Ospreys host Pro12 leaders Glasgow at the Liberty Stadium with both sides battling to secure a place in the top two to ensure a home semi-final tie in the play-offs. A top two finish would be a big step towards reaching the final given that both are unbeaten in the Pro12 at home in 2014-15. Ospreys have not lost in the league at the Liberty Stadium since February 2014 against Munster.
Hello, and good evening!
Scotland has been in the limelight over the past 24 hours following the General Election results, but in tonight's Pro12 rugby action will the spotlight swing to shine on the two Welsh sides against their Scottish opponents?
Follow the action here, and let us know what you think. Get involved on Twitter using #ScrumV, or email us on scrumv@bbc.co.uk - but, as always, remember to include your name and location. Diolch!
NG Dragons v Edinburgh - the line-ups
NG Dragons: Tom Prydie; Ashton Hewitt, Tyler Morgan, Jack Dixon, Hallam Amos; Jason Tovey, Luc Jones; Phil Price, T. Rhys Thomas (capt), Brok Harris, Cory Hill, Rynard Landman, Nick Crosswell, Nic Cudd, Taulupe Faletau.
Replacements: Hugh Gustafson, Lloyd Fairbrother, Dan Way, James Thomas, Ollie Griffiths, Richie Rees, Dorian Jones, Geraint Rhys Jones.
Edinburgh: Jack Cuthbert; Dougie Fife, Sam Beard, Andries Strauss, Tim Visser; Phil Burleigh, Sam Hidalgo-Clyne; Alasdair Dickinson, Ross Ford, WP Nel, Fraser McKenzie, Ben Toolis, Stuart McInally (capt), Hamish Watson, Cornell Du Preez.
Replacements: Neil Cochrane, Rory Sutherland, John Andress, Anton Bresler, Roddy Grant, Nathan Fowles, Tom Heathcote, Tom Brown.
Referee: Gary Conway (IRFU)
Assistant referees: Rhys Thomas, Ben Whitehouse (WRU)
Citing commissioner: Jeff Mark (WRU)
TMO: Gareth Simmonds (WRU)
Ospreys v Glasgow - the line-ups
Ospreys: Dan Evans; Jeff Hassler, Ben John, Josh Matavesi, Eli Walker; Dan Biggar, Rhys Webb; Nicky Smith, Scott Baldwin, Aaron Jarvis, Tyler Ardron, Alun Wyn Jones (capt), James King, Justin Tipuric, Dan Baker.
Replacements: Sam Parry, Marc Thomas, Dmitri Arhip, Rory Thornton, Dan Lydiate, Tom Habberfield, Sam Davies, Jonathan Spratt.
Glasgow Warriors: Stuart Hogg; Tommy Seymour, Richie Vernon, Peter Horne, Niko Matawalu; Duncan Weir, Henry Pyrgos; Ryan Grant, Pat MacArthur, Jon Welsh, Tim Swinson, Jonny Gray, Rob Harley, Chris Fusaro, Josh Strauss (Captain)
Replacements Fraser Brown, Gordon Reid, Euan Murray, Leone Nakarawa, Ryan Wilson, Lee Jones, Fraser Lyle, Peter Murchie.
Referee: George Clancy (IRFU)
Assistant Referees: Neil Hennessy, Martyn Lewis (WRU)
Citing Commissioner: John Charles (WRU )
TMO: Derek Bevan (WRU)