Arsenal 3-1 Manchester City
Manchester United 2-0 Sheffield United
GOALFLASHES AND MAJOR INCIDENTS (all times BST)
Have your say on Tuesday's games on Radio Five Live's 606 at 2200 BST by calling 0500 909 693 or sending a text to 85058, or get involved on the 606 discussion site.
So we're back on Wednesday with West Ham v Chelsea, plus two other Premiership games. How's it going to finish?
2154: FULL-TIME Manchester United 2-0 Sheffield United
Manchester United haven't been at their best and it took the Blades until the last 10 seconds of the game to win their first corner. It was damage limitation for Neil Warnock's side who go to Charlton next. Sir Alex will be hoping that Patrice Evra's injury is not a bad one. Your star men were Ronaldo
and Shelton - good choices. Spot on.
2150: Into injury time at Old Trafford - the fourth official signals another three minutes.
2148: Almost a goal for Sheffield United. Michael Tongue tries his luck from 25 yards and the ball clips the crossbar. Unlucky.
2145: It gets pretty snarled up in Salford and Trafford at the end of a United home match and hundreds of fans are streaming out early.
Watch it Alan Green on Five Live. He's having a pop at people from Scarborough now. That's where I am from. So good job you just apologised!
2140: Poor old Ryan Giggs isn't happy. He's been taken off and ignores Fergie on his way back to the dug-outs. Infact, he spat on to the turf and looked the opposite way as he breezed past his manager. Solskjaer is on.
2138 FULL-TIME Arsenal 3-1 Manchester City
Two goals in the final 16 minutes did Arsenal's Champions League challenge a power of good as City's little run comes to an end. You reckoned Rosicky was your Arsenal top man, with DaMarcus Beasley impressing most for City.
2136: Sir Alex Ferguson is a little restless on the touchline. He's spent a lot of time in his technical area and has just been shouting at Ryan Giggs who is playing his 500th league game for United. Ole Gunnar Solskjaer is warming up.
2135: Ex-United wideman Keith Gillespie is coming on in place of Kazim-Richards. Five Live's Chris Waddle thinks it's a good move: "They've got to keep attacking and believe they can still get something."
2130: It's another huge crowd at Old Trafford, though there are about 500 empty seats. Only managed to squeeze 75,540 through the turnstiles and there's a full house at Arsenal too.
2128: Shelton is away again and closing in on the Manchester United goal but he's stopped by a brilliantly-timed Gabby Heinze tackle. It was a clean tackle for me, though Neil Warnock felt is was a penalty. Actually, looking at it again on the monitors - it WAS a penalty.
2126: GOAL Arsenal 3-1 Manchester City
It's all over for City as Arsenal power further ahead. Alexander Hleb picks out sub Julio Baptista from the right and he does the rest with a sharp finish past Isaksson.
2125: Handbags in the penalty box. Rob Styles over-zealously gives Chris Morgan and Cristiano Ronaldo a yellow card each. Get a grip ref.
2123: United have found their tempo again. Ronaldo almost squeezes home number three, but is denied by a great Kenny save down to his left. United are sniffing more goals.
2122: City have a "goal" disallowed for offside and the officials are right. Barton finds DaMarcus Beasley whose fine finish is in vein.
2120: GOAL Arsenal 2-1 Manchester City
As I predicted just five minutes ago.... and Arsenal are back in the lead. Cesc Fabregas hits his second goal in as many games. It's a sizzling volley from 25 yards that Isaksson can do nothing about. Great finish.
2120: It's gone a bit quiet at Old Trafford where Manchester United have never quite reached top gear. The Sheffield United fans are in good voice, easily out-singing the United fans.
2115: Arsenal are back in the hunt and looking dangerous. Sylvain Distin does well to block out Emmanual Adebayor's shot. Is there a goal on the way at Arsenal?
2113: Great chance for the Blades. Shelton loses Brown with a great piece of movement and he tries to place the ball into the back of the net but gets it wrong and sees his shot fly just over.
2120: GOAL Manchester United 2-0 Sheffield United
It's probably all over in the 50th minute as Wayne Rooney unleashes an thunderous shot from the right-side of the box to beat Kenny for his 20th goal of the season. And what a great pass from Ryan Giggs.
2110: Joey Barton forces Lehmann to get down to save his 20-yard shot. Things have certainly evened up at the Emirates.
2109: Shelton is Sheffield United's best player so far. He's got the better of Wes Brown a couple of times on the left but the Blades haven't capitalised on his work.
2106: Manchester City are growing in confidence. They're probing down both flanks and causing problems. Darius Vassell's pace is troubling Arsenal.
2105: Second half kicks off at Old Trafford.
2102: They're almost ready again at Old Trafford. United are 45 minutes away from stretching their lead at the top of the table to six points (Chelsea play West Ham on Wednesday). It's going to go down to the wire...
2056: City certainly look fired up early in the second half. Arsenal aren't having it all their own way.
2051: They're back out and under way at the Emirates. Can City spring a surprise and hold on for at least a point? We'll soon find out. You rated Arsenal goalscorer Rosicky as the star man of the first period with a rating of 8.06.
2047: HALF-TIME Manchester United 1-0 Sheffield United
Time to put the kettle on. The first-half faded badly and BBC Five Live's Chris Waddle has just called it right, saying: "There's been too many free-kicks, it's stopped the flow of the game and made is very scrappy."
United had 67% of possession in the first half but only managed four shots on target, one more than the Blades.
2046: Shelton is looking more than a bit useful. He's quick and he's fizzed a cross over from the left but there's nobody on the end of it in the centre.
2043: Rooney's lost it again and he's got a yellow card for fouling Phil Jagielka. He could do with a cold shower during the interval or he'll be seeing red.
2040: Approaching half-time at Old Trafford and it's all turned a bit scrappy. Rooney is having a running row with a linesman and coach Carlos Queiroz has told him to cool it. Not quite as noisy as it was last Tuesday against Roma.
2037: A chance for Sheffield United but Luton Shelton loses concentration and hits a wild shot wide of the near post when he could have done better.
2034: HALF-TIME Arsenal 1-1 Manchester City
2033: City continue to press forward and Lehmann is forced into a fine save after Joe Barton bursts into the Gunners area and unleashes a fierce drive which is pushed around the post.
2031: There's trouble in the pressbox. Or at least BBC Radio Five Live commentator Alan Green is poking fun at colleague John Murray who is about 6ft 6in tall. He can't get his legs under the benches in the pressbox. Not very comfortable for him, or for Sheffield United.
2028: GOAL Arsenal 1-1 Manchester City
Arsenal are punished after a poor clearance by Lehmann and Michael Johnson puts the ball through to DaMarcus Beasley who tucks the ball neatly inside the far post for an equaliser against the run of play.
2025: Ronaldo and Carrick are buzzing at the moment for United - it's no surprise that you reckon they are the stars of the show so far. They're both rated at more than 8 out of 10.
2022: Blimey. More defensive worries for United. Now Patrice Evra is hurt and hobbling off. On comes Kieran Richardson who's playing at left-back.
2021: It's almost 2-0 to Arsenal but Isaksson does well to keep out a stinging shot from Cesc Fabregas.
2017: First yellow card at Old Trafford. Derek Geary's in the ref's book for bringing down Ronaldo who goes for glory with the free-kick, but it's sky-high and into the stand.
2017: Diaby has called it quits because of his head injury - and he's replaced by Julio Baptista
2015: Arsenal continue to push forward and Williams Gallas is fed clear on goal by Cesc Fabregas but is denied by a superb intercepting tackle by City centre-half Richard Dunne
2013: Diaby is back in full flow and thankfully the blood has stopped flowing. No Terry Butcher-like scenes yet.
2011: The medics are on at Arsenal. Diaby needs patching up after taking a blow to the head. They've wrapped a very long bandage round and round his head and he's gone off for further treatment.
2007: More brilliant play from United. Carrick's long pass finds Wayne Rooney who gets the ball under control but he can't beat Paddy Kenny. Bit of a let-off that for Warnock's men.
2005: GOAL Manchester United 1-0 Sheffield United
United are ahead already. Alan Smith finds Cristiano Ronaldo who runs at the Blades defence before slipping the ball inside to golden boy Michael Carrick who dinks it over Paddy Kenny to score with ease.
2004: Paul Scholes (no surprise there) commits an early foul and Michael Tongue fires a free-kick in from 25 yards which goes through the wall and is gathered safely by Kuszczak.
2002: Kick-off at Old Trafford.
2000: GOAL Arsenal 1-0 Man City
It's only taken 12 minutes for City to crack. Tomas Rosicky slots the ball past Andreas Isaksson after great work from Emmanuel Eboue on the right. It was oh so easy for Arsenal after City squandered possession.
1957: Arsenal boss Arsene Wenger looks a bit pensive on the bench. His boys have started brightly, but they've not burst into the City box yet.
The Arsenal pitch is perfect, like a snooker table. Plenty of snooker coming up on BBC Sport from the weekend when the World Championship gets under way in Sheffield.
1948: And we're under way a couple of minutes late at Arsenal where the odds suggest a home win. Spurs boss Martin Jol is among the crowd ahead of the north London derby on Saturday. Caretaker Fulham boss Lawrie Sanchez is also in the posh seats.
Arsenal have lost only once in 24 league and Cup games at their gleaming new Emirates Stadium, and City will hope the new ground is more productive for them than Highbury, where their last victory was on 4 October 1975.
It's a gorgeous night in Manchester where United know three points will throw the pressure back on Chelsea, but a defeat would open the door for the Blues to capture a hat-trick of league titles.
Have your say on today's games on Radio Five Live's 606 at 2200 BST by calling 0500 909 693 or sending a text to 85058, or get involved on the messageboards.
Manchester United are without Rio Ferdinand after he failed to recover from the groin injury he sustained in the FA Cup semi against Watford. Keeper Edwin Van der Sar is also out with a nose injury, so Tomasz Kuszczak steps in. Wes Brown and Gabriel Heinze are likely to pair up in central defence.
Sheffield United boss Neil Warnock has been busy. He's left out five players from the 3-0 win over West Ham with striker Jon Stead and defender Claude Davis both injured.
Down in London, Arsenal make just one change - with Abou Diaby in for the injured Freddie Ljungberg at the Emirates Stadium. The Gunners are desperate for three points as a win would lift them above Liverpool into third (at least for 24 hours).
Manchester City are unbeaten in five games but they're without striker Emile Mpenza who has a hip problem. Boss Stuart Pearce has called on Dietmar Hamann to play as he strings five across the middle.