A winning Harlequins return for England skipper Chris Robshaw, Saracens continue their 100% start and Gloucester edge the M5 derby.
And now for the big one.
Over at Rugby HQ the World Cup final has just begun - and you can follow live text and radio commentary by clicking here. We'll see you there!
Recap
FT: Gloucester 24-22 Worcester
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Gloucester recorded their second win of the season with a narrow victory over local rivals Worcester at Kingsholm.
The Cherry and Whites led 19-17 at half-time, with Richard Hibbard and Sione Kalamafoni crossed for the hosts and Cooper Vuna and Niall Annett touched down for Warriors.
Vuna grabbed his second try after the break, but Tevita Halaifonua scored to restore his side's lead with 20 minutes left.
Dean Ryan's side huffed and puffed but could not overcome the two-point deficit.
Recap
FT: Bath 28-38 Harlequins
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Harlequins produced a stunning second-half performance to defeat Bath at the Recreation Ground.
Quins, who had England captain Chris Robshaw back in their side for the first time since the World Cup, trailed 13-12 at the break after Kyle Eastmond's try.
But fly-half Nick Evans kicked eight penalties, while Danny Care and Dave Ward each scored tries, as the visitors ran riot in the second half.
Late scores from Nick Auterac and Semesa Rokoduguni made the scoreline look closer than it was.
Recap
FT: Saracens 24-14 London Irish
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Saracens came from behind to squeeze past London Irish and continue their 100% start to the defence of their Premiership title.
The Exiles held a surprise 7-3 lead at the break, with Asaeli Tikoirotuma's try coming against the run of play.
But, after Tikoirotuma was sin-binned, Jackson Wray and Alex Goode scored to put Mark McCall's side ahead.
Owen Farrell's penalty after Leo Halavatau had touched down secured a less-than-convincing win for Sarries.
Full-time
Gloucester 24-22 Worcester.
Gloucester are eventually awarded a penalty from the scrum. James Hook kicks to touch and that's time.
The Cherry and Whites edge what was a gripping match.
Gloucester 24-22 Worcester
A sudden break from Worcester and they enter the Gloucester 22. However, their hopes of scoring a late winning try are dashed by a forward pass.
Sin-bin (Schonert)
Gloucester 24-22 Worcester
Worcester feel the cost of all those scrum penalties as prop Nick Schonert is shown a yellow card.
The Warriors have used all their forward replacements so we go to uncontested scrums.
Gloucester kick for touch but Worcester steal the line-out and clear the pressure.
Less than three minutes remain.
Gloucester 24-22 Worcester
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Two more penalties for Gloucester from this series of five-metre scrums.
The Warriors are on the rack...
Four minutes to go.
Gloucester 24-22 Worcester
Gloucester get a penalty from the first scrum but decide for another scrum.
Worcester infringe a second time, wheeling the scrum. Cherry and Whites lock Donncha O'Callaghan is furious and calling for further action from the referee.
Gloucester 24-22 Worcester
Chris Pennell is forced back over his try-line and Gloucester have a scrum five metres out.
The home side are looking to turn the screw and tension is mounting at Kingsholm with less than 10 minutes left.
No try (May)
Gloucester 24-22 Worcester
Jonny May thinks he has crossed in the corner to score Gloucester's fourth try of the afternoon, but referee Craig Maxwell-Keys blows up for a forward pass.
The replays are shown on the big screen, and they aren't conclusive.
The Kingsholm crowd are not impressed.
Full-time
Bath 28-38 Harlequins
And that's the last action of the game as Quins produce a stunning second-half performance to stun last season Premiership runners-up.
Try (Rokoduguni, con Ford)
Bath 28-38 Harlequins
There is late consolation for Bath as Semesa Rokoduguni finishes well in the corner but it has no impact on the game. George Ford kicks the conversion.
No try
Bath 21-38 Harlequins
It's a late flurry from Bath as Leroy Houston thinks he's finished off a stunning burst from Semesa Rokoduguni. However, the TMO rules it a 'No Try'.
Try (Halaifonua, missed con Hook)
Gloucester 24-22 Worcester
Gloucester hit back and the pendulum swings again, this time back in favour of the home side.
After great work from Willi Heinz and Charlie Sharples, David Halaifona races away and finishes in the corner.
James Hook can't convert from out wide and the Cherry and Whites have a two point lead with 20 minutes remaining at Kingsholm.
Try (Auterac, missed con Ford)
Bath 21-38 Harlequins
Bath have something cheer about as a driving maul sees Nick Auterac bundle over. George Ford hits the upright with the conversion with three minutes remaining.
Bath 16-38 Harlequins
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It's 26-3 to Quins in this second half. One heck of a performance from the visitors.
Try (Ward, con Evans)
Bath 16-38 Harlequins
It's becoming a rout at The Rec as Dave Ward scores Quins' second try of the game after a decent offload from Tim Visser sets him free. Evans does what he's done all afternoon and kicks the extras.
Sin-bin (Eastmond)
Bath 16-31 Harlequins
Bath's Kyle Eastmond is sent to the bin for tackling without the use of his arms. There's a bit of a coming together with Marland Yarde also and the Bath man will leave the field for 10 minutes.
Try (Vuna, missed con Lamb)
Gloucester 19-22 Worcester
Worcester work a great move from a line-out. Chris Pennell makes a break and the support comes from Cooper Vuna, who crosses in the corner from 15 metres out.
Ryan Lamb, on for Tom Heathcote, can't add the extras.
No try (Visser)
Bath 16-31 Harlequins
Tim Visser goes over in the corner for Quins but after consulting the TMO a forward pass is called and Bath survive.
Gloucester 19-17 Worcester
Gloucester go through the phases in the Worcester 22 and get up to within three metres of the try-line.
Billy Twelvetrees' kick over the top doesn't find a Cherry and White shirt and the Warriors touch down in their own in-goal area and get a 22-metre drop-out.
Penalty (Evans)
Bath 16-31 Harlequins
Nick Evans is having quite some afternoon for Harlequins with yet another penalty. He's contributed 26 of Quins' 31 points at The Rec.
Kick-off
Gloucester 19-17 Worcester
Gloucester start the second half at Kingsholm.
Penalty (Ford)
Bath 16-28 Harlequins
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Bath have a penalty in front of the posts but decide to go for the sticks rather than kick to the corner and Ford gets their first points of the half.
Full-time
Saracens 24-14 London Irish
The full-time whistle sounds at Allianz Park, and Saracens continue their 100% start to the season with a 24-14 victory over London Irish.
Penalty (Evans)
Bath 13-28 Harlequins
With 14 minutes of the second half gone the scoreboard does not make pleasant reading for Bath fans with their side now 15 points behind after yet another Evans penalty.
Missed penalty (Geraghty)
Saracens 24-14 London Irish
And that, you'd have thought, definitely will be that.
Shane Geraghty drags a kick wide to leave Saracens 10 points ahead inside the final 60 seconds - in the process wasting an opportunity to grab a losing bonus point for his team.
Bath 13-25 Harlequins
Wales international Rhys Priestland is on for his home debut, replacing Ollie Devoto as Bath look to get back in this game.
Penalty (Farrell)
Saracens 24-14 London Irish
That may well prove to be terminal for London Irish, who concede a penalty at the breakdown, from which Owen Farrell lands another three points to put Saracens clear.
Five metres left at Allianz Park.
Half-time
Gloucester 19-17 Worcester
Gloucester have a narrow lead at the break in a cracking encounter against Worcester at Kingsholm.
The two sides traded early tries and the lead has switched between the home side and the Warriors several times.
This derby game could go to the wire...
Penalty (Evans)
Bath 13-25 Harlequins
Quins with their tails up and after winning yet another penalty in range of Bath's posts Evans kicks them into a 12-point lead against last season's Premiership runners-up.
Missed penalty (Twelvetrees)
Gloucester 19-17 Worcester
Gloucester get another penalty, this time six metres into the Worcester half.near the touchline.
But Twelvetrees' effort hits the right hand upright and the visitors manage to hack the ball away to touch.
Try (Care, con Evans)
Bath 13-22 Harlequins
Danny Care produces a bit of individual brilliance as he breaks from his own 22, finds a gap, kicks forward and after Leroy Houston misjudged it the England scrum-half collected to cross for Quins.
The reliable boot of Nick Evans sends over the conversion.
Penalty (Twelvetrees)
Gloucester 19-17 Worcester
Gloucester get a penalty from a scrum right in front of the posts and five metres out.
It's a simple kick for Billy Twelvetrees and he makes no mistake. Five minutes to go until half-time.
Penalty (Farrell)
Saracens 21-14 London Irish
But as is so often the case, the team who've just scored concede a penalty straight from the restart - and Owen Farrell splits the posts to open up a seven-point gap.
Penalty (Evans)
Bath 13-15 Harlequins
Bath are penalised for not releasing and Nick Evans puts Quins back in front at The Rec.
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Try (Halavatau, con Geraghty)
Saracens 18-14 London Irish
What have we got here then? It had looked like Saracens may well coast to victory after Alex Goode's try - but London Irish have other ideas.
Leo Halavatau scores it, Shane Geraghty converts it an only four points separate the sides with 15 minutes left.
Kick-off
Bath 13-12 Harlequins
We're back under way at The Rec as Quins fly-half Nick Evans gets the second half started.
Try (Annett, con Heathcote)
Gloucester 16-17 Worcester
Worcester start a rolling maul from a line-out, and most of the backs get involved as well to push over the Gloucester line.
Prop Niall Annett is the man who touches down and Tom Heathcote converts to put the Warriors back in front.
Try (Goode, con Farrell)
Saracens 18-7 London Irish
Having trailed at half-time, Saracens are now more than a score clear of their visitors.
Full-back Alex Goode is the man with the try, stepping past the tackler and touching down from close range.
Owen Farrell converts, Sarries are in charge.
Penalty (Mills)
Gloucester 16-10 Worcester
Ryan Mills hits back straight away to get Worcester back within touching distance.
Penalty (Twelvetrees)
Gloucester 16-7 Worcester
Billy Twelvetrees extends the home side's lead after Worcester were penalised.
Saracens 11-7 London Irish
Saracens, whose lead is still a slender one, bring some of their big guns on from the bench - including England duo Richard Wigglesworth and Brad Barritt.
Half-time
Bath 13-12 Harlequins
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It's Bath who go into the break with their noses in front. After a scrappy start it's growing into an intriguing contest at The Rec.
Penalty (Ford)
Bath 13-12 Harlequins
The lead is going back and forth here at The Rec and George Ford takes the opportunity to send over his second penalty of the game on the stroke of half-time.
Try (Kalamafoni, missed con Twelvetrees)
Gloucester 13-7 Worcester
Sione Kalamafoni thinks he has got Gloucester's second try of the afternoon in the corner but the decision is referred to the television match official.
After a bit of deliberation referee Craig Maxwell-Keys decides there is no infringement and awards the score.
Twelvetrees slices the conversion wide. He's had a mixed start to the afternoon.
Try (Wray, missed con Farrell)
Saracens 11-7 London Irish
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And at long, long last Saracens have their try! Jackson Wray crosses after a catch-and-drive from the home pack to put his side ahead.
Owen Farrell misses the conversion, but that will still be a huge relief to Mark McCall.
Penalty (Evans)
Bath 10-12 Harlequins
Bath are penalised for not staying on their feet and Quins have their second penalty in as many minutes and Nick Evans sends over his fourth of the half.
Sin-bin (Tikoirotuma)
Saracens 6-7 London Irish
Asaeli Tikoirotuma, London Irish's try-scorer, will have to spend the next 10 minutes in the bin for a high attack.
Saracens are on the attack...
Penalty (Twelvetrees)
Gloucester 8-7 Worcester
Gloucester have a period of sustained pressure in the Warriors 22 and eventually force a penalty from a scrum, six metres in from touch.
Cherry and Whites skipper Billy Twelvetrees slots it through the posts, making amends for that early missed conversion.
Penalty (Evans)
Bath 10-9 Harlequins
Harlequins come roaring back and Nick Evans sends over his third penalty of the game from in front of the posts.
Try (Eastmond, con Ford)
Bath 10-6 Harlequins
Persistence eventually pays off as Kyle Eastmond goes over in the right corner after Ollie Devoto's pass sets his fellow Bath centre free.
George Ford sends over a fine conversion from the touchline to extend the lead to three points.
Penalty (Farrell)
Saracens 6-7 London Irish
Saracens have been knocking hard on the London Irish door in the early stages of this second half and they at last have some points to show for it, courtesy of the boot of Owen Farrell.
We have a one-point game in north London.
Bath 3-6 Harlequins
Bath in the ascendancy but they can't find any holes in this Quins defence with 10 minutes until half-time.
Try (Vuna, con Heathcote)
Gloucester 5-7 Worcester
Worcester hit back immediately through Cooper Vuna. What a start!
The Warriors wing intercepts a pass about 15 metres out and touches down under the posts.
Tom Heathcote converts.
Try (Hibbard, missed con Twelvetrees)
Gloucester 5-0 Worcester
Gloucester get a rolling maul going from a line-out and Richard Hibbard gets the decisive touch to give the hosts the first try of the game with just three minutes on the clock.
Billy Twelvetrees misses the conversion.
Kick-off
Saracens 3-7 London Irish
Chris Noakes gets the second half at Allianz Park under way. Can London Irish pull something a bit special off with 40 minutes to go?
Kick-off
Gloucester 0-0 Worcester
And we're under way in the afternoon's third Premiership encounter.
The weather is perfect at Kingsholm as Worcester's Tom Heathcote kicks off to get the M5 derby started.
BBC coverage
A quick reminder, with the last of our three games today set to get going in a few moments, that you can listen to live BBC local radio commentary by selecting the 'Live Coverage' tab at the top of this page.
Bath 3-6 Harlequins
Niko Matawalu sends Bath full-back Anthony Watson over but play is called back for a forward pass. The hosts are getting closer and closer.
Bath 3-6 Harlequins
Neither side have got into any sort of rhythm at The Rec, with Bath scrum-half Niko Matawalu doing his best to spark his side into life as David Wilson knocks on just shy of the try-line.
Team news
Gloucester v Worcester (14:00 GMT)
Worcester Warriors hand a full debut to Fiji international lock Tevita Cavubati as director of rugby Dean Ryan makes one change to the side which suffered a 27-13 defeat at Sale last time out.
Darren Barry drops to the bench for the Premiership newcomers.
It's fair to say the scrum has been a bit of a mess at The Rec and after several resets David Wilson is eventually penalised for incorrect binding. Nick Evans sends over the kick as Quins retake the lead.
Team news
Gloucester v Worcester (14:00 GMT)
Wales international flanker Ross Moriarty returns from World Cup duty for Gloucester at Kingsholm.
He is the only change to the starting XV that lost 17-15 to champions Saracens in round two.
How about this for a half-time scoreline then? Champions Saracens trail at the break.
Penalty (Ford)
Bath 3-3 Harlequins
From the resulting line-out and maul Harlequins number eight Nick Easter is penalised for coming in at the side but this time Ford goes for the posts and levels the game.
Saracens 3-7 London Irish
But that's tremendous work from the Exiles pack, who hold firm on their own try-line under the full force of another Saracens rolling maul.
Bath 0-3 Harlequins
Quins are penalised for not releasing and George Ford kicks for the corner. Bath are on the attack.
Saracens 3-7 London Irish
Only a couple of minutes to go until the break, and Saracens are deep inside London Irish territory once more.
They have a rolling maul moving in the right direction, up to the 10-metre line, but again the Exiles are penalised.
Sarries go to touch...
Penalty (Evans)
Bath 0-3 Harlequins
Nick Evans gets the first points of the game for Harlequins after David Wilson was penalised for ruck infringement.
Post update
Gloucester v Worcester (14:00 GMT)
Saracens 3-7 London Irish
Saracens win another penalty within kicking range - but Owen Farrell this time turns the opportunity down in favour of heading for touch.
However, having secured safe ball at the line-out, the hosts knock on and the Exiles are reprieved. Frustration is mounting.
Kick-off
Bath 0-0 Harlequins
It's a glorious day at sun-drenched Recreation Ground as fly-half George Ford lofts the ball high and gets proceedings under way in Bath.
Try (Tikoirotuma, con Noakes)
Saracens 3-7 London Irish
Goodness me, where did that come from? Saracens have spent the majority of this half camped inside London Irish territory - but Asaeli Tikoirotuma adds the finishing touch to a rare Exiles attack to put his side ahead.
Chris Noakes converts and Tom Coventry's men take a surprise lead.
Team news
Bath v Harlequins (13:30 GMT)
England captain Chris Robshaw makes his first appearances of the season for Harlequins following the national side's pool-stage exit from the World Cup.
Winger Tim Visser makes his debut for Quins as Nick Easter, Joe Gray, Joe Marler and club captain Danny Care are given their first starts of the campaign.
Indiscipline should be costing the Exiles dearly, as they this time infringe at the breakdown, but Owen Farrell again drags his attempted kick wide.
The England man's radar unusually wonky.
Missed penalty (Farrell)
Saracens 3-0 London Irish
The Sarries pack has been absolutely dominant so far here, and again they win a penalty at the scrum.
This kick is a little further out for Owen Farrell, around 45 metres from the posts, and the fly-half drifts it just wide. The score remains 3-0 after 18 minutes.
Team news
Bath v Harlequins (13:30 GMT)
Bath make six changes to the side beaten at 16-9 Wasps last weekend.
Matt Banahan returns to the left wing as Anthony Watson shifts to full-back.
Max Lahiff, Rob Webber and David Wilson form a new front row, and Dominic Day and Guy Mercer also come into the pack.
Owen Farrell this time calls for the tee - and this time Saracens will return from an attacking position with points.
The hosts strike first at Allianz Park.
Saracens 0-0 London Irish
Sarries are definitely having the better of the set-piece, twice turning over at the line-out through lively lock Maro Itoje and now, for a second time in the match, their pack gets a shove on at the scrum to win a penalty.
Post update
Bath v Harlequins (13:30 GMT)
Saracens 0-0 London Irish
The home fans are up in celebration as Ernst Joubert touches down, but Mike Ellery had placed a foot just into touch earlier in the move so it won't count.
An otherwise relatively quiet opening nine minutes or so in north London.
Saracens 0-0 London Irish
The visiting Exiles have started brightly at Allianz Park, kicking an early penalty to touch and getting a rolling maul moving towards the try-line.
But eventually the ball is knocked on and Saracens will insert at scrum time.
Post update
Bath v Harlequins (13:30 GMT)
A Harlequins side including England skipper Chris Robshaw, of course. Full team news to follow shortly.
Kick-off
Saracens 0-0 London Irish
Saracens fly-half Owen Farrell boots the ball long to get this afternoon's Premiership action under way.
Sarries are in their traditional red and black, London Irish in white.
Post update
Saracens v London Irish (13:00 GMT)
Get Involved
#bbcrugby
So who's impressed you in the early stages of the Premiership season? Do unbeaten Saracens already look in pole position to reclaim their crown? Can Worcester survive at the top table?
Get in touch with us throughout the afternoon by using #bbcrugby on Twitter.
Team news
Saracens v London Irish (13:00 GMT)
London Irish, who have lost their opening two games in the Premiership, bring in Scotland duo Sean Maitland and Blair Cowan.
Fergus Mulchrone replaces Eoin Griffin at centre as director of rugby Tom Coventry makes three changes from the 38-11 defeat at Exeter last time out.
Saracens make seven changes to the side which won narrowly at Gloucester in round two, with captain Alistair Hargreaves making his first start of the season.
Rhys Gill, Maro Itoje, Will Fraser and Ernst Joubert all come into the pack while scrum-half Ben Spencer and centre Duncan Taylor return to the starting XV.
Played two, won two meets played two, lost two at Allianz park this lunchtime.
There's no let up for Tom Coventry's Exiles as they face the defending champions following defeats against Leicester and Exeter.
But Irish can cling to the fact they are one of only three sides to beat Sarries here - a 22-13 victory back in February 2014.
BBC coverage
We have three matches to bring you from the English top flight this afternoon - and you can follow live text and radio commentary right on this very page.
Saracens v London Irish (13:00 GMT)
Bath v Harlequins (13:30 GMT)
Gloucester v Worcester (14:00 GMT)
The warm-up act
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So, after six weeks and 47 matches, today we will at last find out who rules the world of rugby union.
Everyone excited? Yep, us too.
However, before New Zealand and Australia go head to head for the Webb Ellis Cup at 16:00 GMT, there's a little Premiership-shaped hole that needs filling. And fill it we shall...
Post update
Commentaries available on this page - Use 'Live Coverage' tab to select commentary
Saracens v London Irish (13:00 GMT) - BBC Radio London and BBC Radio Berkshire
Bath v Harlequins (13:30 GMT) - BBC Radio Bristol
Gloucester v Worcester (14:00 GMT) - BBC Radio Gloucestershire and BBC Hereford and Worcester
Live Reporting
Nabil Hassan, Rob Stevens and Brendon Mitchell
All times stated are UK
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BBC SportCopyright: BBC Sport - Saracens v London Irish (13:00 GMT)
- Bath v Harlequins (13:30 GMT)
- Gloucester v Worcester (14:00 GMT)

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Latest PostTime for the big one...
That was a busy old three hours or so, wasn't it?
A winning Harlequins return for England skipper Chris Robshaw, Saracens continue their 100% start and Gloucester edge the M5 derby.
And now for the big one.
Over at Rugby HQ the World Cup final has just begun - and you can follow live text and radio commentary by clicking here. We'll see you there!
Recap
FT: Gloucester 24-22 Worcester
Gloucester recorded their second win of the season with a narrow victory over local rivals Worcester at Kingsholm.
The Cherry and Whites led 19-17 at half-time, with Richard Hibbard and Sione Kalamafoni crossed for the hosts and Cooper Vuna and Niall Annett touched down for Warriors.
Vuna grabbed his second try after the break, but Tevita Halaifonua scored to restore his side's lead with 20 minutes left.
Dean Ryan's side huffed and puffed but could not overcome the two-point deficit.
Recap
FT: Bath 28-38 Harlequins
Harlequins produced a stunning second-half performance to defeat Bath at the Recreation Ground.
Quins, who had England captain Chris Robshaw back in their side for the first time since the World Cup, trailed 13-12 at the break after Kyle Eastmond's try.
But fly-half Nick Evans kicked eight penalties, while Danny Care and Dave Ward each scored tries, as the visitors ran riot in the second half.
Late scores from Nick Auterac and Semesa Rokoduguni made the scoreline look closer than it was.
Recap
FT: Saracens 24-14 London Irish
Saracens came from behind to squeeze past London Irish and continue their 100% start to the defence of their Premiership title.
The Exiles held a surprise 7-3 lead at the break, with Asaeli Tikoirotuma's try coming against the run of play.
But, after Tikoirotuma was sin-binned, Jackson Wray and Alex Goode scored to put Mark McCall's side ahead.
Owen Farrell's penalty after Leo Halavatau had touched down secured a less-than-convincing win for Sarries.
Full-time
Gloucester 24-22 Worcester.
Gloucester are eventually awarded a penalty from the scrum. James Hook kicks to touch and that's time.
The Cherry and Whites edge what was a gripping match.
Gloucester 24-22 Worcester
A sudden break from Worcester and they enter the Gloucester 22. However, their hopes of scoring a late winning try are dashed by a forward pass.
Sin-bin (Schonert)
Gloucester 24-22 Worcester
Worcester feel the cost of all those scrum penalties as prop Nick Schonert is shown a yellow card.
The Warriors have used all their forward replacements so we go to uncontested scrums.
Gloucester kick for touch but Worcester steal the line-out and clear the pressure.
Less than three minutes remain.
Gloucester 24-22 Worcester
Two more penalties for Gloucester from this series of five-metre scrums.
The Warriors are on the rack...
Four minutes to go.
Gloucester 24-22 Worcester
Gloucester get a penalty from the first scrum but decide for another scrum.
Worcester infringe a second time, wheeling the scrum. Cherry and Whites lock Donncha O'Callaghan is furious and calling for further action from the referee.
Gloucester 24-22 Worcester
Chris Pennell is forced back over his try-line and Gloucester have a scrum five metres out.
The home side are looking to turn the screw and tension is mounting at Kingsholm with less than 10 minutes left.
No try (May)
Gloucester 24-22 Worcester
Jonny May thinks he has crossed in the corner to score Gloucester's fourth try of the afternoon, but referee Craig Maxwell-Keys blows up for a forward pass.
The replays are shown on the big screen, and they aren't conclusive.
The Kingsholm crowd are not impressed.
Full-time
Bath 28-38 Harlequins
And that's the last action of the game as Quins produce a stunning second-half performance to stun last season Premiership runners-up.
Try (Rokoduguni, con Ford)
Bath 28-38 Harlequins
There is late consolation for Bath as Semesa Rokoduguni finishes well in the corner but it has no impact on the game. George Ford kicks the conversion.
No try
Bath 21-38 Harlequins
It's a late flurry from Bath as Leroy Houston thinks he's finished off a stunning burst from Semesa Rokoduguni. However, the TMO rules it a 'No Try'.
Try (Halaifonua, missed con Hook)
Gloucester 24-22 Worcester
Gloucester hit back and the pendulum swings again, this time back in favour of the home side.
After great work from Willi Heinz and Charlie Sharples, David Halaifona races away and finishes in the corner.
James Hook can't convert from out wide and the Cherry and Whites have a two point lead with 20 minutes remaining at Kingsholm.
Try (Auterac, missed con Ford)
Bath 21-38 Harlequins
Bath have something cheer about as a driving maul sees Nick Auterac bundle over. George Ford hits the upright with the conversion with three minutes remaining.
Bath 16-38 Harlequins
It's 26-3 to Quins in this second half. One heck of a performance from the visitors.
Try (Ward, con Evans)
Bath 16-38 Harlequins
It's becoming a rout at The Rec as Dave Ward scores Quins' second try of the game after a decent offload from Tim Visser sets him free. Evans does what he's done all afternoon and kicks the extras.
Sin-bin (Eastmond)
Bath 16-31 Harlequins
Bath's Kyle Eastmond is sent to the bin for tackling without the use of his arms. There's a bit of a coming together with Marland Yarde also and the Bath man will leave the field for 10 minutes.
Try (Vuna, missed con Lamb)
Gloucester 19-22 Worcester
Worcester work a great move from a line-out. Chris Pennell makes a break and the support comes from Cooper Vuna, who crosses in the corner from 15 metres out.
Ryan Lamb, on for Tom Heathcote, can't add the extras.
No try (Visser)
Bath 16-31 Harlequins
Tim Visser goes over in the corner for Quins but after consulting the TMO a forward pass is called and Bath survive.
Gloucester 19-17 Worcester
Gloucester go through the phases in the Worcester 22 and get up to within three metres of the try-line.
Billy Twelvetrees' kick over the top doesn't find a Cherry and White shirt and the Warriors touch down in their own in-goal area and get a 22-metre drop-out.
Penalty (Evans)
Bath 16-31 Harlequins
Nick Evans is having quite some afternoon for Harlequins with yet another penalty. He's contributed 26 of Quins' 31 points at The Rec.
Kick-off
Gloucester 19-17 Worcester
Gloucester start the second half at Kingsholm.
Penalty (Ford)
Bath 16-28 Harlequins
Bath have a penalty in front of the posts but decide to go for the sticks rather than kick to the corner and Ford gets their first points of the half.
Full-time
Saracens 24-14 London Irish
The full-time whistle sounds at Allianz Park, and Saracens continue their 100% start to the season with a 24-14 victory over London Irish.
Penalty (Evans)
Bath 13-28 Harlequins
With 14 minutes of the second half gone the scoreboard does not make pleasant reading for Bath fans with their side now 15 points behind after yet another Evans penalty.
Missed penalty (Geraghty)
Saracens 24-14 London Irish
And that, you'd have thought, definitely will be that.
Shane Geraghty drags a kick wide to leave Saracens 10 points ahead inside the final 60 seconds - in the process wasting an opportunity to grab a losing bonus point for his team.
Bath 13-25 Harlequins
Wales international Rhys Priestland is on for his home debut, replacing Ollie Devoto as Bath look to get back in this game.
Penalty (Farrell)
Saracens 24-14 London Irish
That may well prove to be terminal for London Irish, who concede a penalty at the breakdown, from which Owen Farrell lands another three points to put Saracens clear.
Five metres left at Allianz Park.
Half-time
Gloucester 19-17 Worcester
Gloucester have a narrow lead at the break in a cracking encounter against Worcester at Kingsholm.
The two sides traded early tries and the lead has switched between the home side and the Warriors several times.
This derby game could go to the wire...
Penalty (Evans)
Bath 13-25 Harlequins
Quins with their tails up and after winning yet another penalty in range of Bath's posts Evans kicks them into a 12-point lead against last season's Premiership runners-up.
Missed penalty (Twelvetrees)
Gloucester 19-17 Worcester
Gloucester get another penalty, this time six metres into the Worcester half.near the touchline.
But Twelvetrees' effort hits the right hand upright and the visitors manage to hack the ball away to touch.
Try (Care, con Evans)
Bath 13-22 Harlequins
Danny Care produces a bit of individual brilliance as he breaks from his own 22, finds a gap, kicks forward and after Leroy Houston misjudged it the England scrum-half collected to cross for Quins.
The reliable boot of Nick Evans sends over the conversion.
Penalty (Twelvetrees)
Gloucester 19-17 Worcester
Gloucester get a penalty from a scrum right in front of the posts and five metres out.
It's a simple kick for Billy Twelvetrees and he makes no mistake. Five minutes to go until half-time.
Penalty (Farrell)
Saracens 21-14 London Irish
But as is so often the case, the team who've just scored concede a penalty straight from the restart - and Owen Farrell splits the posts to open up a seven-point gap.
Penalty (Evans)
Bath 13-15 Harlequins
Bath are penalised for not releasing and Nick Evans puts Quins back in front at The Rec.
Try (Halavatau, con Geraghty)
Saracens 18-14 London Irish
What have we got here then? It had looked like Saracens may well coast to victory after Alex Goode's try - but London Irish have other ideas.
Leo Halavatau scores it, Shane Geraghty converts it an only four points separate the sides with 15 minutes left.
Kick-off
Bath 13-12 Harlequins
We're back under way at The Rec as Quins fly-half Nick Evans gets the second half started.
Try (Annett, con Heathcote)
Gloucester 16-17 Worcester
Worcester start a rolling maul from a line-out, and most of the backs get involved as well to push over the Gloucester line.
Prop Niall Annett is the man who touches down and Tom Heathcote converts to put the Warriors back in front.
Try (Goode, con Farrell)
Saracens 18-7 London Irish
Having trailed at half-time, Saracens are now more than a score clear of their visitors.
Full-back Alex Goode is the man with the try, stepping past the tackler and touching down from close range.
Owen Farrell converts, Sarries are in charge.
Penalty (Mills)
Gloucester 16-10 Worcester
Ryan Mills hits back straight away to get Worcester back within touching distance.
Penalty (Twelvetrees)
Gloucester 16-7 Worcester
Billy Twelvetrees extends the home side's lead after Worcester were penalised.
Saracens 11-7 London Irish
Saracens, whose lead is still a slender one, bring some of their big guns on from the bench - including England duo Richard Wigglesworth and Brad Barritt.
Half-time
Bath 13-12 Harlequins
It's Bath who go into the break with their noses in front. After a scrappy start it's growing into an intriguing contest at The Rec.
Penalty (Ford)
Bath 13-12 Harlequins
The lead is going back and forth here at The Rec and George Ford takes the opportunity to send over his second penalty of the game on the stroke of half-time.
Try (Kalamafoni, missed con Twelvetrees)
Gloucester 13-7 Worcester
Sione Kalamafoni thinks he has got Gloucester's second try of the afternoon in the corner but the decision is referred to the television match official.
After a bit of deliberation referee Craig Maxwell-Keys decides there is no infringement and awards the score.
Twelvetrees slices the conversion wide. He's had a mixed start to the afternoon.
Try (Wray, missed con Farrell)
Saracens 11-7 London Irish
And at long, long last Saracens have their try! Jackson Wray crosses after a catch-and-drive from the home pack to put his side ahead.
Owen Farrell misses the conversion, but that will still be a huge relief to Mark McCall.
Penalty (Evans)
Bath 10-12 Harlequins
Bath are penalised for not staying on their feet and Quins have their second penalty in as many minutes and Nick Evans sends over his fourth of the half.
Sin-bin (Tikoirotuma)
Saracens 6-7 London Irish
Asaeli Tikoirotuma, London Irish's try-scorer, will have to spend the next 10 minutes in the bin for a high attack.
Saracens are on the attack...
Penalty (Twelvetrees)
Gloucester 8-7 Worcester
Gloucester have a period of sustained pressure in the Warriors 22 and eventually force a penalty from a scrum, six metres in from touch.
Cherry and Whites skipper Billy Twelvetrees slots it through the posts, making amends for that early missed conversion.
Penalty (Evans)
Bath 10-9 Harlequins
Harlequins come roaring back and Nick Evans sends over his third penalty of the game from in front of the posts.
Try (Eastmond, con Ford)
Bath 10-6 Harlequins
Persistence eventually pays off as Kyle Eastmond goes over in the right corner after Ollie Devoto's pass sets his fellow Bath centre free.
George Ford sends over a fine conversion from the touchline to extend the lead to three points.
Penalty (Farrell)
Saracens 6-7 London Irish
Saracens have been knocking hard on the London Irish door in the early stages of this second half and they at last have some points to show for it, courtesy of the boot of Owen Farrell.
We have a one-point game in north London.
Bath 3-6 Harlequins
Bath in the ascendancy but they can't find any holes in this Quins defence with 10 minutes until half-time.
Try (Vuna, con Heathcote)
Gloucester 5-7 Worcester
Worcester hit back immediately through Cooper Vuna. What a start!
The Warriors wing intercepts a pass about 15 metres out and touches down under the posts.
Tom Heathcote converts.
Try (Hibbard, missed con Twelvetrees)
Gloucester 5-0 Worcester
Gloucester get a rolling maul going from a line-out and Richard Hibbard gets the decisive touch to give the hosts the first try of the game with just three minutes on the clock.
Billy Twelvetrees misses the conversion.
Kick-off
Saracens 3-7 London Irish
Chris Noakes gets the second half at Allianz Park under way. Can London Irish pull something a bit special off with 40 minutes to go?
Kick-off
Gloucester 0-0 Worcester
And we're under way in the afternoon's third Premiership encounter.
The weather is perfect at Kingsholm as Worcester's Tom Heathcote kicks off to get the M5 derby started.
BBC coverage
A quick reminder, with the last of our three games today set to get going in a few moments, that you can listen to live BBC local radio commentary by selecting the 'Live Coverage' tab at the top of this page.
Bath 3-6 Harlequins
Niko Matawalu sends Bath full-back Anthony Watson over but play is called back for a forward pass. The hosts are getting closer and closer.
Bath 3-6 Harlequins
Neither side have got into any sort of rhythm at The Rec, with Bath scrum-half Niko Matawalu doing his best to spark his side into life as David Wilson knocks on just shy of the try-line.
Team news
Gloucester v Worcester (14:00 GMT)
Worcester Warriors hand a full debut to Fiji international lock Tevita Cavubati as director of rugby Dean Ryan makes one change to the side which suffered a 27-13 defeat at Sale last time out.
Darren Barry drops to the bench for the Premiership newcomers.
Replacements: George, Rapava Ruskin, Rees, Barry, Cox, Mulchrone, Lamb, Howard.
Penalty (Evans)
Bath 3-6 Harlequins
It's fair to say the scrum has been a bit of a mess at The Rec and after several resets David Wilson is eventually penalised for incorrect binding. Nick Evans sends over the kick as Quins retake the lead.
Team news
Gloucester v Worcester (14:00 GMT)
Wales international flanker Ross Moriarty returns from World Cup duty for Gloucester at Kingsholm.
He is the only change to the starting XV that lost 17-15 to champions Saracens in round two.
Replacements: Brooker, Thomas, Doran-Jones, Stooke, Rowan, Braley, Burns, Purdy.
Half-time
Saracens 3-7 London Irish
How about this for a half-time scoreline then? Champions Saracens trail at the break.
Penalty (Ford)
Bath 3-3 Harlequins
From the resulting line-out and maul Harlequins number eight Nick Easter is penalised for coming in at the side but this time Ford goes for the posts and levels the game.
Saracens 3-7 London Irish
But that's tremendous work from the Exiles pack, who hold firm on their own try-line under the full force of another Saracens rolling maul.
Bath 0-3 Harlequins
Quins are penalised for not releasing and George Ford kicks for the corner. Bath are on the attack.
Saracens 3-7 London Irish
Only a couple of minutes to go until the break, and Saracens are deep inside London Irish territory once more.
They have a rolling maul moving in the right direction, up to the 10-metre line, but again the Exiles are penalised.
Sarries go to touch...
Penalty (Evans)
Bath 0-3 Harlequins
Nick Evans gets the first points of the game for Harlequins after David Wilson was penalised for ruck infringement.
Post update
Gloucester v Worcester (14:00 GMT)
Saracens 3-7 London Irish
Saracens win another penalty within kicking range - but Owen Farrell this time turns the opportunity down in favour of heading for touch.
However, having secured safe ball at the line-out, the hosts knock on and the Exiles are reprieved. Frustration is mounting.
Kick-off
Bath 0-0 Harlequins
It's a glorious day at sun-drenched Recreation Ground as fly-half George Ford lofts the ball high and gets proceedings under way in Bath.
Try (Tikoirotuma, con Noakes)
Saracens 3-7 London Irish
Goodness me, where did that come from? Saracens have spent the majority of this half camped inside London Irish territory - but Asaeli Tikoirotuma adds the finishing touch to a rare Exiles attack to put his side ahead.
Chris Noakes converts and Tom Coventry's men take a surprise lead.
Team news
Bath v Harlequins (13:30 GMT)
England captain Chris Robshaw makes his first appearances of the season for Harlequins following the national side's pool-stage exit from the World Cup.
Winger Tim Visser makes his debut for Quins as Nick Easter, Joe Gray, Joe Marler and club captain Danny Care are given their first starts of the campaign.
Replacements: Ward, Lambert, Sinckler, Matthews, Wallace, Dickson, Botica, Lindsay-Hague.
Missed penalty (Farrell)
Saracens 3-0 London Irish
Indiscipline should be costing the Exiles dearly, as they this time infringe at the breakdown, but Owen Farrell again drags his attempted kick wide.
The England man's radar unusually wonky.
Missed penalty (Farrell)
Saracens 3-0 London Irish
The Sarries pack has been absolutely dominant so far here, and again they win a penalty at the scrum.
This kick is a little further out for Owen Farrell, around 45 metres from the posts, and the fly-half drifts it just wide. The score remains 3-0 after 18 minutes.
Team news
Bath v Harlequins (13:30 GMT)
Bath make six changes to the side beaten at 16-9 Wasps last weekend.
Matt Banahan returns to the left wing as Anthony Watson shifts to full-back.
Max Lahiff, Rob Webber and David Wilson form a new front row, and Dominic Day and Guy Mercer also come into the pack.
Replacements: Batty, Auterac, Thomas, Hooper, Northcote-Green, Cook, Priestland, Homer.
Penalty (Farrell)
Saracens 3-0 London Irish
Owen Farrell this time calls for the tee - and this time Saracens will return from an attacking position with points.
The hosts strike first at Allianz Park.
Saracens 0-0 London Irish
Sarries are definitely having the better of the set-piece, twice turning over at the line-out through lively lock Maro Itoje and now, for a second time in the match, their pack gets a shove on at the scrum to win a penalty.
Post update
Bath v Harlequins (13:30 GMT)
Saracens 0-0 London Irish
The home fans are up in celebration as Ernst Joubert touches down, but Mike Ellery had placed a foot just into touch earlier in the move so it won't count.
An otherwise relatively quiet opening nine minutes or so in north London.
Saracens 0-0 London Irish
The visiting Exiles have started brightly at Allianz Park, kicking an early penalty to touch and getting a rolling maul moving towards the try-line.
But eventually the ball is knocked on and Saracens will insert at scrum time.
Post update
Bath v Harlequins (13:30 GMT)
A Harlequins side including England skipper Chris Robshaw, of course. Full team news to follow shortly.
Kick-off
Saracens 0-0 London Irish
Saracens fly-half Owen Farrell boots the ball long to get this afternoon's Premiership action under way.
Sarries are in their traditional red and black, London Irish in white.
Post update
Saracens v London Irish (13:00 GMT)
Get Involved
#bbcrugby
So who's impressed you in the early stages of the Premiership season? Do unbeaten Saracens already look in pole position to reclaim their crown? Can Worcester survive at the top table?
Get in touch with us throughout the afternoon by using #bbcrugby on Twitter.
Team news
Saracens v London Irish (13:00 GMT)
London Irish, who have lost their opening two games in the Premiership, bring in Scotland duo Sean Maitland and Blair Cowan.
Fergus Mulchrone replaces Eoin Griffin at centre as director of rugby Tom Coventry makes three changes from the 38-11 defeat at Exeter last time out.
Replacements: Ellis, Court, Halavatau, Sheriff, Sisi, Steele, Geraghty, Lewington.
Team news
Saracens v London Irish (13:00 GMT)
Saracens make seven changes to the side which won narrowly at Gloucester in round two, with captain Alistair Hargreaves making his first start of the season.
Rhys Gill, Maro Itoje, Will Fraser and Ernst Joubert all come into the pack while scrum-half Ben Spencer and centre Duncan Taylor return to the starting XV.
England's Owen Farrell moves to fly-half.
Replacements: Saunders, Barrington, Lamositele, Hamilton, Burger, Wigglesworth, Barritt, Wyles.
Sunshine in north London
Saracens v London Irish (13:00 GMT)
Adam Williams
BBC Sport at Allianz Park
Played two, won two meets played two, lost two at Allianz park this lunchtime.
There's no let up for Tom Coventry's Exiles as they face the defending champions following defeats against Leicester and Exeter.
But Irish can cling to the fact they are one of only three sides to beat Sarries here - a 22-13 victory back in February 2014.
BBC coverage
We have three matches to bring you from the English top flight this afternoon - and you can follow live text and radio commentary right on this very page.
The warm-up act
So, after six weeks and 47 matches, today we will at last find out who rules the world of rugby union.
Everyone excited? Yep, us too.
However, before New Zealand and Australia go head to head for the Webb Ellis Cup at 16:00 GMT, there's a little Premiership-shaped hole that needs filling. And fill it we shall...
Post update
Commentaries available on this page - Use 'Live Coverage' tab to select commentary
Saracens v London Irish (13:00 GMT) - BBC Radio London and BBC Radio Berkshire
Bath v Harlequins (13:30 GMT) - BBC Radio Bristol
Gloucester v Worcester (14:00 GMT) - BBC Radio Gloucestershire and BBC Hereford and Worcester