We'll be back on Sunday to bring you coverage of those two Scottish Cup matches so make sure you tune in. The match at Ibrox will also be streamed on the BBC Sport website.
Thanks for your company. Enjoy the rest of your Saturday.
We'll be back on Sunday to bring you coverage of those two Scottish Cup matches so make sure you tune in. The match at Ibrox will also be streamed on the BBC Sport website.
Thanks for your company. Enjoy the rest of your Saturday.
Stranraer take on Dundee United tomorrow before BBC Scotland provides live television coverage of Rangers v Raith Rovers. Which of those sides will progress to the last eight?
In the Premiership, Aberdeen move level on points with leaders Celtic after a thumping win at home against struggling Ross County. The Dingwall side remain six points adrift at the wrong end of the table.
Hamilton player-boss Martin Canning has yet to win a game in six attempts and today's goalless draw at home to Killie will not live long in the memory of those at New Douglas Park.
Right, time for a quick recap. Scottish Cup holders St Johnstone are out of this year's competition, beaten 2-0 by Championship side Queen of the South.
Spartans live to fight another day, with the Lowland League side snatching a late draw at home to Berwick Rangers.
Hibs recovered from losing the first goal to see off Arbroath, Falkirk edged out Brechin and Inverness turned in a strong first half display before holding on for victory at Partick Thistle.
At lunchtime, Celtic were far too strong for Dundee at Dens Park.
Kyle Jacobs nets a stoppage-time penalty but it's not enough for Livingston as Hearts pick up a 3-2 victory to stretch their lead at the top to 19 points.
The Lowland League side go and snatch a stoppage-time leveller through Ally MacKinnon. Wild scenes at Ainslie Park...
James Mullins: "And that's what wins championships!! Go Hearts!"
The holders are out at a foggy Palmerston.
A quick one-two from Hearts has Livingston on the canvas, with new arrival Kenny Anderson and Jamie Walker scoring to make it 3-1 to the runaway league leaders.
Jonny Hayes opens up the County defence with a cute pass and David Goodwillie slides a cool finish past Antonio Reguero for the Scottish Premiership's 1000th goal.
Gavin Reilly surely books the Doonhamers place in the quarter-finals for the first time since their run to Hampden in 2008. Stephen McKenna races down the right before picking out the forward to side-foot home.
Jason Cummings races clear of the Arbroath defence and just has Marc McCallum to beat but he goes for a casual dink and the ball drifts wide.
The fog is getting thicker at Palmerston but they should be able to see it through. Not long to go now as the cup holders seek an equaliser.
Brechin go close to a quick reply as Colin Hamilton smashes in a long-range effort and Jamie MacDonald needs to make a smart save.
Another substitute on target as David Smith smashes in the rebound after Rory Loy's shot is saved after a mazy run from the striker.
Finally, St Johnstone sense their Scottish Cup is slipping away and the chances are beginning to come their way now. James McFadden cuts inside the whistles a shot not too far wide of the far post.
Danny Redmond is clean through and goes down following a challenge from behind by Kilmarnock defender Manuel Pascali. BBC Sportsound pundit Derek Ferguson is almost speechless as no penalty is given.
The Red Lichties are tiring now and Fraser Fyvie, making his Hibs debut after a deadline day move, shows off some fancy footwork before skelping a shot narrowly wide.
Falkirk have stepped it up in the last 10 minutes and Morgan Taylor smacks a header against the crossbar.
If Saints are knocked out they will rue this moment as Michael O'Halloran lets a golden chance slip at the back post. Murray Davidson's header across goal just needs to be knocked in but somehow the striker blasts the ball off the snow piled up in front of the terracing.
The subs are making a good impression this afternoon as Dylan McGeouch twists one way then another before firing Hibs further ahead. It looks like Alan Stubbs' men have fully recovered from that early scare.
The Jags are right back in it as substitute Lyle Taylor, back for a second loan spell at Firhill, hammers in a powerful strike after running on to Stephen O'Donnell's long ball.
It should really be 2-0. Gavin Reilly is given acres of space on the right. His cross finds Derek Lyle, but it hits the back of his head and turns into a clearance rather than a goal.
The Dons enter a street named easy as full-back Shay Logan cuts in from the right and lets fly with his left foot. Goalkeeper Antonion Reguero gets a glove on it but can only help it into the top corner.
Hibernian are in front thanks to Jason Cummings' 13th goal of the season. The striker's shot took a deflection off Liam Gordon to deceive keeper Marc McCallum.
There's no sign of a fight-back from Tommy Wright's men yet as Queens continue to dominate. Gavin Reilly heads wide, then Paul Burns tests keeper Alan Mannus with a stinging shot.
Striker Josh Magennis meets Chris Chantler's cross but watches his glanced header go inches past the post. Killie are starting to warm up after a wretched first half.
The visitors are rewarded for a lively start to the second half as Gerry McLauchlan is upended and Alan Trouten tucks away the penalty.
Former Jambo Craig Sives brings Livingston level with league leaders Hearts. It's 1-1 in West Lothian.
Aberdeen substitute Peter Pawlett, on for Cammy Smith, weaves his way past a couple of challenges to slot home and double the Dons' advantage.
What a miss from Bobby Barr! The Brechin striker hammers over from six yards.
Saints are rocking here as Gavin Reilly shrugs off his marker and fires just wide for the hosts.
The cup holders are in trouble as Derek Lyle knocks in his 14th goal of the season. Paul Burns is denied by Alan Mannus but moments later his cross falls to Lewis Kidd and his drilled effort is helped in by Lyle from close range.
We are up and running again in the most of the games.
Spot the ball...
Saints will have been the happiest team to hear the half-time whistle. The Doonhamers enjoyed an encouraging last 20 minutes. Two early free-kicks apart the cup holders haven't really got going in a foggy Dumfries.
Celtic have already booked their place in the last eight of the Scottish Cup and Inverness CT look well on course to join them. The other ties are all evenly balanced and we have Stranraer v Dundee Utd and Rangers v Raith Rovers to come tomorrow. The draw will be conducted on Monday afternoon, with darts world champion Gary Anderson helping out.
League Two Berwick Rangers are on track for a place in the last eight of the Scottish Cup thanks to an early goal from Paul Willis.
And breathe... Hibs fans are mightily relieved as David Gray romps forward from right-back and cuts the ball back for Franck Dja Djedje to tuck in his first goal for the club.
Michael Paton and Ian McShane both fire in shots within two minutes of each other as the home side start to dominate, before Kevin Holt knocks the ball over from close range. They can't quite work the goalkeeper but these are encouraging signs for the 2008 finalists.
Brechin, unbeaten in 14 matches, threaten to level as Andy Jackson draws a good save from Jamie MacDonald.
The League Two side are well on top at Ainslie Park, threatening to double their lead on a number of occasions.
BBC Scotland's Martin Dowden on Twitter: "I've rarely seen as bad a defensive performance as @ThistleTweet have put in today. Atrocious is being kind @ICTFC 2 up @BBCSportScot"
Keith McAdam: "Hibs losing at the moment against the Div 2 leaders Arbroath - this is not good at all #bbcscotfootball
James Mullins: "Hearts looking good in the league, could be the shock of the round in the cup if Hibs make a comeback though #bbcscotfootball"
Hibs forward Djedje knocks the ball into an empty net but the striker from the Ivory Coast is ruled to have fouled keeper Marc McCallum to win the ball. Scott Allan then thunders a shot from 25 yards against the post...
The Bairns go close to doubling their lead as the lunging Taylor Morgan beats the onrushing keeper to the ball but his shot trundles agonisingly wide.
The Doonhamers have weathered the early storm and are enjoying a bit of possession, though they are not yet causing the Saints' backline too much trouble just yet.
Partick Thistle continue to struggle to contain their visitors and this time Greg Tansey gets beyond the hosts' defence to drive in the second Inverness goal.
Hearts are 1-0 up at Livingston. Genero Zeefuik with the early goal for the Championship leaders. If they stay in front, the Jambos will be 19 points clear at the top.
Jason Scotland blazes a shot over the bar from Danny Redmond's pass as Accies carve the best chance of the match so far.
Inverness forward Marley Watkins is clean through for the third time this afternoon and he's one for three at the moment as his shot creeps inches wide.
What's this? Do we have a sniff of a major upset at Easter Road? The League Two side are ahead as a Keiran Stewart fires a shot from a tight angle over home keeper Mark Oxley.
The Highlanders are in front at Firhill as Marley Watkins nets with a left foot shot from inside the box following Ross Draper's pass.
Ross County goalkeeper Antonio Reguero fails to deal with a dribbling, long-range effort from Jonny Hayes and Adam Rooney is on hand to poke the ball in. A goalkeeping howler...
Tom Taiwo swings in a corner and it's nodded across goal by Taylor Morgan for David McCracken to head the hosts ahead.
Hibernian are swarming all over the League Two side at Easter Road and really should be ahead as Jason Cummings and Fraser Fyvie are both guilty of fresh-air swipes with the goal at their mercy.
Two early free-kicks from St Johnstone are not too far away - Dave Mackay and David Wotherspoon seeing efforts deflected past the post. It gives referre Steven McLean a chance to try out the fancy new vanishing spray.
The hosts have started brightly and Jason Cummings goes down in the box but the howls of supporters are not enough to convince referee Andrew Dallas.
The League Two side are ahead and Paul Willis is the man with the goal but I don't know much about it since BBC reporter Jim Spence sounds like he's at the bottom of a well.
Kenny McLean makes an early impression on his Aberdeen debut, sending the ball into the area and it eventually falls for Adam Rooney, who miscues a shot high and wide. BBC Scotland's Willie Miller suggests the striker should have done better.
And we're off!
Official ICTFC: "Here we are. Firhill at last! Fine day here, pitch sandy as the Gobi desert."
Fred McGrath: "A win for Aberdeen today and they can pretend to be title challengers again #bbcscotfootball
Alex MacLeod: "Going for Partick Thistle 2 - 4 ICT #bbcscotfootball"
Queen of the South: Atkinson, Dowie, Durnan, Higgins, Kidd, McShane, Burns, Holt, Paton, Lyle, Reilly. Subs: Mitchell, Russell, McKenna, Carmichael, Slattery, Hooper, Arthur.
St Johnstone: Mannus, Mackay, Anderson, Scobbie, Easton, Wotherspoon, Lappin, Davidson, Swanson, McFadden, Kane. Subs: Wright, Graham, Banks, Caddis, Miller, Brown, O'Halloran.
The cup holders will not relish a trip to Palmerston, where the home side have already defeated Rangers and Hibernian in the Championship this season.
The Saints enjoyed picking up their first major silverware last season and recent recruit Danny Swanson is an exciting, if erratic, player, who will be expected to bring creativity to Tommy Wright's side.
Spartans: Swain, Nixon, Malone, MacKinnon, Cennerazzo, Beesley, Thomson, Motion, Stevenson, Bremner, Paul-Jon Sludden. Subs: Errol Douglas, Brown, Beacher, Bruce, Henretty, Gilpin, Grant.
Berwick Rangers: Bald, Jacobs, Young, Fairbairn, Drummond, Notman, Lee Currie, Gray, Lavery, Henderson, Willis. Subs: Cameron, Russell, Gold, Maxwell, Dargo, Andrews, Miller.
Perhaps not the money-spinning draw that the Lowland League side wanted but, with form in this tournament, Spartans will be confident of reaching the last eight.
Berwick Rangers, mid-table in League Two, will also see this as a fantastic opportunity to go further than usual.
Hibernian: Oxley, Gray, Hanlon, Fontaine, Stevenson, Robertson, Scott Allan, Fyvie, Craig, Dja Djedje, Cummings. Subs: Forster, Stanton, Handling, Lewis Allan, Cerny, Martin, McGeouch.
Arbroath: McCallum, Rowan, Gordon, Whatley, Lindsay, Carreiro, Little, Adam Hunter, Stewart, McManus, Murray. Subs: Johnstone, Buchan, Smith, Lowdon, Linn, Wilson.
Arbroath are top of League Two but have not won a match this year. They have only lost one of those four, so it's not exactly a slump.
Simon Murray has banged in 18 goals for the Red Lichties this season and will join Dundee United in the summer. His dad used to play for Hibs, so the 22-year-old Jim Spence look-a-like should be fired up for this one.
Hibernian are unbeaten in eight but have had trouble putting teams away when they are on top, especially at home - as evidenced by recent draws against Falkirk and Raith Rovers.
There is only one game in the Championship today and Hearts can stretch their lead at the top to a whopping 19 points if they win at Livingston.
BBC Sport Scotland at New Douglas Park
"Facing off in South Lanarkshire today are two teams desperately in need of a win... and more specifically, two managers eager for victory.
"Fifth-place Hamilton Academical haven't won in the five games player-manager Martin Canning has been boss, and he'll have deal with the loss of top scorer Tony Andreu after the Frenchman's move to Norwich City.
"Eighth-place Kilmarnock, meanwhile, have interim manager Gary Locke at the helm for the first time after yesterday's departure of Allan Johnston.
"Killie have failed to get a win in their last four matches so Locke's long-term chances of the job would surely be enhanced by getting them out the rut here at New Douglas Park."
Celtic boss Ronny Deila on BBC Radio Scotland
"We were very quick and sharp. We are improving all the time and that makes me very happy.
"I knew we had another level and the team is having fun, they enjoy chasing, they enjoy winning. I love to win."
Partick Thistle: Gallacher, O'Donnell, Seaborne, Frans, Elliot, Osman, Fraser, Lawless, Bannigan, Higginbotham, Stevenson. Subs: Taylor, Fox, Balatoni, Craigen, Doolan, McDaid, Keenan.
Inverness CT: Esson, Raven, Meekings, Warren, Shinnie, Tansey, Draper, Vincent, Williams, Ross, Watkins. Subs: Devine, Horner, Tremarco, Polworth, Christie, Mackay, Ferguson.
The second of only two all-Premiership ties, and one that promises goals. Inverness will be out to make amends, having lost 4-0 at home and 3-1 away to the Jags in the league.
The home side have brought in Lyle Taylor again, while Inverness lost their main striker, Billy McKay, in the transfer window.
Falkirk: MacDonald, Duffie, McCracken, Grant, Leahy, Sibbald, Vaulks, Taiwo, Alston, Loy, Morgan. Subs: Smith, Bowman, Dick, Maybury, Cooper, Blair, Bia Bi.
Brechin: Smith, McLean, McCormack, McLauchlan, Hamilton, Trouten, Fusco, Molloy, Barr, Ferguson, Andrew Jackson. Subs: Thomson, Tapping, O'Neil, McNeil, Steven Jackson, Storie.
Falkirk have closed ground on the play-off positions in the Championship, losing just once in their last 11 games.
They should be too strong for Ray McKinnon's League One side, but I reckon this could be a close game.
Right, what about the rest of these Scottish Cup ties - will we get a few shock results this afternoon?
Hamilton: McGovern, Gordon, Canning, Garcia Tena, Hendrie, Gillespie, MacKinnon, Crawford, Routledge, Scotland, Redmond. Subs: Sumsky, Devlin, Lyon, Lynch, Longridge, Brophy, Hill.
Kilmarnock: Samson, Westlake, Pascali, Connolly, Chantler, Eremenko, McKenzie, Clingan, Slater, Obadeyi, Magennis. Subs: Barbour, Hamill, Johnston, Cairney, Brennan, Smith, Syme.
Aberdeen: Brown, Logan, Daniels, Reynolds, Considine, Jack, Smith, McGinn, McLean, Hayes, Rooney. Subs: Langfield, Flood, Robson, Pawlett, Goodwillie, Shaughnessy, Shankland.
Ross County: Reguero, Fraser, Paul Quinn, Boyd, Reckord, Dingwall, Kiss, Palazuelos, Irvine, Woods, Boyce. Subs: De Vita, Sernas, Saunders, Curran, Brown, Carey, MacLeod.
Celtic striker Leigh Griffiths on BBC Radio Scotland
"We started at a good tempo and the early goal settled us. I don't think I've scored so many headers in one season."
Has that new weave given Mr Griffiths new powers with his napper?
How will the Killie players react following Allan Johnston's sudden departure?
The manager announced his intention to quit the club at the end of the season on Thursday moments before a Rugby Park press conference, apparently angered by being completely out of the loop concerning the sale of striker Robbie Muirhead to Dundee United on transfer deadline day. Yesterday, the board told him to pack up with assistant Gary Locke put in charge while a new boss is sought.
Hamilton have not won a game since Alex Neil moved on but picked up their first point in five matches with a draw at Dens Park last weekend.
The Dons can go level on points with leaders Celtic if they manage a win against the Premiership's bottom side.
The Staggies are six points adrift at the moment and have only picked up one win on the road all season. However, Jim McIntyre's men have drawn their last four away matches.
It's not all about the Scottish Cup today since we have two Premiership matches as well this afternoon.
Celtic stroll into the quarter-finals of the Scottish Cup. Leigh Griffiths and Stefan Johansen got the goals early in each half and the win really should have been by a greater margin.
We're getting three minutes of stoppage time. I'm not sure why the referee is bothering really.
The game at Dens Park is so boring now that I'm going to inflict a Jim Spence "selfie" on you. Our intrepid reporter is at Ainslie Park for Spartans v Berwick Rangers.
Team news is beginning to filter through from the other matches and I can tell you new signing Kenny McLean starts for Aberdeen and Fraser Fyvie will be making his Hibernian debut.
So much for that second wind, it's all gone a bit quiet as Celtic knock the ball around at the back.
Stephen Hay: "This is reminiscent of last week's Old Firm game. Over at 2-0, should be more, and the ref should call it. #bbcscotfootball"
Celtic have found a second wind and the waves of attack have started up again, with Dundee being pressed further back and defending valiantly.
Leigh Griffiths opened the scoring and he really should have had a few more. This time the Celtic striker skews a first-time shot wide from 20 yards following another enterprising run from the impressive Stefan Johansen.
Celtic striker John Guidetti is on for the last 15 minutes at Dens Park, replacing James Forrest.
Anthony Stokes kills a lofted cross from Leigh Griffiths with a deft touch and spins away from his marker to blast a rising shot over the crossbar from 18 yards.
Paul McGinn pops up in the penalty box for Dundee but his attempted cut-back into the mixer is cut out by the stretched leg of Adam Matthews.
Top of the league, in the League Cup final and heading for the last eight in the Scottish Cup. Is the treble on for Celtic? They last managed such a feat in 2001, Martin O'Neill's first season in charge.
BBC Scotland's Jonathan Sutherland: "The correct way to pronounce Jason Denayer's surname is apparently 'dinner-your', so I'm told. #ScottishCup"
Thanks for sharing, Jonners...
A bit of lull as Celtic take a breather. Dundee just can't get a foothold in this game, despite good backing from the home fans.
Stefan Johansen turns on the style with an outside-of-the-boot cross from the right and Dundee keeper Scott Bain is fortunate that his unconvincing flap pushes the ball on to the back post and away to safety.
Dundee striker Luka Tankulic turns away from two opponents to fire off a low shot from 20 yards and Craig Gordon gets his body right behind it.
Dundee make another change and Craig Wighton is replaced by fellow forward David Clarkson.
Dundee full-back Willie Dyer goes into the referee's wee black book for a late, scything tackle on James Forrest.
Celtic striker Anthony Stokes is not complaining as referee John Beaton shows him a yellow card for collapsing in the penalty box.
It's game over for Mikael Lustig, recently returned from a long-term injury. Adam Matthews is on to fill in at right-back.
Dundee manage to get in behind the Celtic defence but Luka Tankulic and Stephen McGinn get in the way of each other, allowing Mikael Lustig to get a leg between them and poke clear. The defender is injured in the process, though.
Arjun Greig: "Once Celtic go 0-2 up that means it's game over. #bbcscotfootball"
obi_one_nil: "#bbcscotfootball tragic that Brown has this air of invincibility around him now, oh how standards in Scottish football has fallen."
MBEHAN: "Griffiths fully justifying his position in his team , if Johansen could score more goals he would be some player #bbcscotfootball"
Is there any way back for Dundee now? The pace of Leigh Griffiths, Stefan Johansen and James Forrest will prohibit the hosts from pushing too many men forward - and they need to get the ball back from Celtic, who are bossing possession.
Leigh Griffiths peels away from his marker to meet a deep cross from Mikael Lustig and his downward header is kept out by the fingertips of Scott Bain. However, the keeper can do nothing as Stefan Johansen is quickest to the loose ball and the Celtic midfielder slams the ball into an empty net.
We're up and running again...
Celtic are making a change, with Kris Commons picking up a hamstring injury and Anthony Stokes coming on in his place.
What about today's other cup ties - Falkirk v Brechin, Hibernian v Arbroath, Partick Thistle v Inverness CT, Queen of the South v St Johnstone and Spartans v Berwick Rangers - any upsets on the cards?
And is it an upset if we predict it in advance?
Referee John Beaton got it spot on first time with his new vanishing spray, handling his canister like a veteran graffiti artist. I wonder if he was practicing in the garden yesterday?
Chickey: "@Forrest completely ineffectual, lots of running with absolutely no end game, I'd have him off now. #bbcscotfootball"
It's been pretty much one-way traffic at Dens Park but Celtic only have one goal to show for their dominance - a good header from Leigh Griffiths after seven minutes.
Celtic striker Leigh Griffiths runs on to a lovely, flighted ball from Virgil van Dijk and takes it on the volley near the penalty spot. He connects with real venom but cannot keep the shot down as it soars over the crossbar.
Celtic goalkeeper Craig Gordon makes his first save of the day, readjusting his feet before clawing away Paul McGowan's deflected strike.
James McPake fails to deal with a awkward, bouncing ball and Stefan Johansen has a clear view at goal from 10 yards but he can't beat Dundee keeper Scott Bain.
Craig: "Scott Brown is untouchable #bbcscotfootball"
Iain MacPhail: "Griffiths has been the most predatory Scots striker for years, needs to work on link up & tracking back to get in Scot team #bbcscotfootball"
Here come Celtic again, with Scott Brown bombing forward to tee up Kris Commons but the strike from the right edge of the penalty box is not a clean one and busy goalkeeper Scott Bain gathers with ease.
That change for Dundee will require a bit of a reshuffle but manager Paul Hartley had already changed things around, switching from a 4-4-2 to a lone striker formation, with Luka Tankulic his most advanced player.
That's a blow for Dundee as top-scorer Greg Stewart limps off to be replaced by Paul McGinn, who normally operates at right-back.
Stefan Johansen threads a good pass in from the right, with Leigh Griffiths setting up a shooting chance for Kris Commons with a clever step-over. However, the midfielder can only skew his first-time effort wide.
Leigh Griffiths has a great chance to double his tally as he collects a deft touch from Kris Commons but his close-range shot is weak and Scott Bain is able to keep it out.
Malcolm Macdonald: "Look how happy the ref was using his new spray! #bbcscotfootball"
A chorus of "ooohs" greets a shot from Dundee defender Kostadin Gadzhalov as the ball whistles wide from 18 yards.
A big cheer greets the first use of vanishing spray in Scottish football. Greg Stewart rather lets the side down by floating a harmless delivery into the penalty area and Celtic clear their lines.
Celtic break at breathtaking pace with Stefan Johansen slipping a pass to James Forrest who should really score but Scott Bain sticks out a big paw to make the save and James McPake sticks out a leg to prevent the loose ball falling for Leigh Griffiths right in front of goal.
Stephen Docherty: "Griffiths' game has improved immensely #bbcscotfootball."
Celtic's new recruits Gary Mackay-Steven and Stuart Armstrong (sitting next to Stefan Scepovic) are familiar with Dens Park, having played across the street with Dundee United. The duo are cup-tied, so not involved today. At the moment they might be thinking it's going to be hard to break into this side..
BBC Sportsound pundit Pat Bonner
"Celtic are playing with great confidence and they work so hard to get the ball back anytime they lose it."
Scott Brown arrives in the penalty area with a run from midfield to collect a pass from James Forrest and the Celtic captain's low shot is deflected wide.
The Celtic attacks are coming thick and fast and Dundee's defenders are blowing hard already as goalkeeper Scott Bain gets his fingertips to a corner under pressure from Virgil van Dijk.
Kris Commons pings a great ball over the top for Stefan Johansen to run on to. The Norwegian midfielder cuts inside to have a blast in the penalty box but in comes Dundee defender James McPake with a perfectly timed sliding tackle.
Celtic are playing a very high line, with full-backs Mikael Lusting and Emilio Izaguiire pushing right up the pitch. It's been a very positive start from the visitors.
Mikael Lustig strides forward and delivers a fabulous cross for Leigh Griffiths to meet at the near post and the striker deftly steers a header into the far corner.
Dundee win the first corner of the day as Virgil van Dijk clears under pressure from Luka Tankulic. However, the visitors deal with it with Mikael Lustig heading away from the near post area.
Dundee were ahead by now on Celtic's last visit. It's been a lively start this time but no goals to report just yet.
And we're off...
The teams trot out at Dens Park. Not long to go now.
Miguel Juans: "I predict a 1-1 scoreline today #bbcscotfootball."
bringthemonjpn: "#bbcscotfootball What a day to be a Scottish football fan. Dundee have every chance in this match. Weather on their side."
The will-he, won't-he Kris Commons saga was settled this week, with the midfielder signing a new two-year deal at Celtic.
The 31-year-old has started every game since the turn of the year and has scored in his last two matches.
Here he is doing a Winston Churchill impression...
Paul Hartley has been at Dens Park for a year now and his report card makes encouraging reading. Having gained promotion - a third in a row, following his successes at Alloa - the Dark Blues have settled into the Premiership very comfortably.
Dundee manager Paul Hartley on BBC Radio Scotland
"We're playing well and we're going to have a go today. Celtic are top of the league but we have played two good games against them this season.
"There will be a lot of key areas and defensively we need to be solid, we also need to use the ball well when we have it. We've picked an attacking line-up to try and give Celtic problems."
Celtic striker Leigh Griffiths will be high on confidence following his goal in last weekend's League Cup semi-final. He was also on target against former club Dundee on his last visit to Dens Park.
Celtic manager Ronny Deila on BBC Radio Scotland
"This is a very important game. The treble has been the goal since day one.
"This week has been the best in training since I've been here. The squad is strong and almost injury free, so we are in a good place at the moment. Hopefully, we will see a very good performance."
Three games have been called off due to the winter weather. Ayr United v Airdrieonians and Morton v Stirling Albion in League One, while Clyde v Annan in the bottom tier was postponed yesterday.
Dundee held Celtic to a 1-1 draw at Dens Park in August and Paul Hartley's side are unbeaten in their last six outings. The Dark Blues also knocked Aberdeen out in the previous round, so this promises to be a stern test for the visitors.
Celtic reached the League Cup final last weekend with a comfortable win over Rangers, their fifth consecutive victory since we entered 2015. They haven't conceded a goal in six games.
Dundee boss Paul Hartley has gone for an attacking line-up, with teenager Craig Wighton joining Luka Tankulic and top scorer Greg Stewart in a three-pronged attack.
Winger James Forrest returns to the Celtic starting line-up.
Dundee: Bain, Irvine, Dyer, McPake, Gadzhalov, McGowan, McAlister, S McGinn, Stewart, Tankulic, Wighton. Subs: Letheren, Konrad, Black, Allan, McBride, P McGinn, Clarkson.
Celtic: Gordon, Lustig, Denayer, van Dijk, Izaguirre, Bitton, Brown, Commons, Johansen, Forrest, Griffiths. Subs: Zaluska, Ambrose, Matthews, Henderson, Stokes, Guidetti, McGregor.
Celtic, with aspirations of a domestic treble, travel to Dundee for the lunchtime kick-off in less than half an hour.
There are five more cup ties at 15:00, along with Aberdeen v Ross County and Hamilton v Kilmarnock in the Premiership.
Good afternoon. We're down to the last 16 in the Scottish Cup this weekend, with each division in the Scottish Professional Football League still represented along with Spartans from the Lowland League.
Half of the Premiership sides are gone already, with two more guaranteed to follow and at least three teams from outside the top flight certain to progress to the quarter-finals.