Last Updated: 17/04/13 9:41pm
All over at Upton Park, and Manchester United have to settle for moving only one point closer to the Premier League title after coming up against a spirited and determined West Ham. Good game, fair result.
Free-kick for West Ham inside their own half after a foul by Van Persie. That may be the end of Man United's victory hopes in this one.
Great cross from Giggs looks sure to give Hernandez a tap-in, but Carroll makes a superb sliding interception.
Vidic, meanwhile, unhappy about an apparent elbow from Carroll. On replays, looks like he caught him but also looks accidental.
Collison's cross hits Carrick on the chest. Appeals for a penalty from the home fans, but rightly not given.
Collison heads the corner clear, Rafael concedes a free-kick to prevent any West Ham counter-attack.
Nolan, who as much as anyone has personified West Ham's spirit and endeavour tonight, makes way along with goalscorer Diame for Collison and Taylor.
Chance! Carrick dinks the ball through for the run of Hernandez. Rather than bring it down, Hernandez flicks a header goalwards but Jaaskelainen is alive to the threat.
A cross breaks for Van Persie but he can't react quickly enough to do anything other than prod the ball straight at Jaaskelainen.
GOAL - VAN PERSIE! Kagawa's stunning turn and shot cannons off both posts and bounces out for Van Persie to hammer into the roof of the net from close range. Looks like he was just offside when the initial shot came in, but the flag stayed down.
Valencia's cross from the right is headed clear to Giggs, and his attempt to prod the ball back into the danger area fails.
Promising breakaway for Man United comes to nothing as Kagawa leaves a pass for Van Persie well short and Nolan mops up.
Another throw-in decision goes against Giggs as he tackles Demel and claims the ball ricocheted off the West Ham man.
Giggs' first major involvement is to look accusingly at the officials when a throw-in decision goes against him. Did look like a Man United ball.
Rafael cuts inside onto his left foot and looks to curl one into the top corner but sends it high and wide.
The corner comes to nothing. Man United not at their best tonight, but pushing hard for the equaliser.
Save! Another good save from Jaaskelainen to deny Van Persie, and this one does count. Powerful header from the Man United striker, but doesn't get it close enough to the corner and the keeper is able to divert it over the bar.
First change as Mark Noble replaces O'Neil, who has just made his most telling contribution of the night in keeping that Rooney effort out.
Great, raking pass from Jones picks out the run of Rafael down the right, but his cross is headed to safety by Collins.
The corner is played low to Rooney and his first-time shot slithers under Jaaskelainen, but O'Neil is on hand to hack clear and spare the keeper's blushes. Nicely-worked corner routine from Man United, but it would've been a keeping howler had that crept in.
Kagawa plays the ball out to Valencia on the right but his drilled low cross is blocked and West Ham bring the ball clear.
Save! Offside flag! Man United break through Rafael who, after sprinting 50 yards plays the ball into space on the right. Valencia runs onto it and curls a delicious cross that perfectly picks out Van Persie. He looks sure to score, but his first-time effort is blocked by Jaaskelainen and the offside flag - correctly - is raised against the Dutchman.
Carrick finds Van Persie on the edge of the West Ham area, but the striker dallies before deciding whether to pass or shoot and is crowded out.
GOAL - DIAME! West Ham back in front through a wonderful goal from Diame. He picks the ball up from Diame on the right-hand side of the penalty box before spinning away from Rooney and curling a perfect shot past De Gea and inside the far post.
Close! Carroll takes the ball down on his chest before trying his luck from 30 yards and sending a dipping volley into the side-netting. Just for a second there, De Gea was a worried man. Fair to say Carroll's been involved tonight.
Another flashpoint at Upton Park as Carroll and De Gea exchange angry words after contesting a high ball. The West Ham man goes into the book, Lee Probert signalling it's the striker's third offence.
Another intervention needed from Vidic, who this time wins a free-kick after being caught by a stray boot.
Glorious chance for Man United in the opening seconds of the second half. Van Persie has the chance to go for goal himself after being picked out at the back post by Rooney's raking cross but instead nods the ball back for the run of Jones, but the midfielder makes a mess of it.
That free-kick is the last action of a lively first half. West Ham started superbly and took a deserved lead before Valencia levelled for the visitors after superb work from Kagawa. A controversial end to the half saw a West Ham penalty appeal turned down and Carroll escape further punishment for barreling into De Gea after a corner was punched clear.
A long one minute of added time in the end. That really was a poor challenge from Carroll on De Gea, and Sir Alex Ferguson is raging to the fourth official as his keeper prepares to take the free-kick.
De Gea punches the corner clear and is then clattered by the onrushing Carroll. Evra also left on the ground as several players from both teams contested the corner.
Delay in the taking of the corner as the referee has words with a group of players including Rooney and Carroll about some penalty-area handbags.
Free-kick aimed long and straight into the Man United penalty area, where Ferdinand takes no chances and heads behind for a corner under pressure from Carroll.
Rooney loses the ball and then, perhaps frustrated, clips Diame's heels and gives away a free-kick in midfield.
Another penalty appeal from West Ham, and a bit more to this one as Vidic puts his hand in Nolan's back. The West Ham man needed little encouragement to go down, but Vidic taking a risk and giving the ref a decision to make there.
Carroll's given both Man United centre-backs plenty to think about, this time forcing Ferdinand to put the ball out of play for a throw.
Demel's cross from the right is met by Carroll, but his header lacks power and is easily gathered by De Gea.
Kagawa sloppily gives the ball away to Carroll inside the Man United half. The play is spread out once again to Jarvis on the left, and his dinked cross just evades Carroll before being cleared. Some appeals for a foul on Carroll by Vidic there, but didn't look much.
Game's changed here, with the visitors now playing most of the threatening football. Evra crosses from the left, but it's cleared.
Nice move from Man United involving Rooney, Jones and Valencia ends with a misplaced pass from Carrick looking to set Van Persie clear.
Van Persie can't dig out a cross under pressure from Demel, and the ball bobbles behind for a West Ham goal-kick.
Lovely cross from Jarvis out on the left, but the ball is touched away from Carroll just as he's preparing to head goalwards.
Diame works his way into a nice position on the left but drags a shot wastefully into the side-netting.
GOAL - VALENCIA! Man United level. There was a warning shot down the left a few minutes ago, and this time West Ham are cut open in sweet style as Kagawa gets to the byline after being released by Van Persie and squares to give Valencia, who had taken care to stay onside, the easiest of finishes from no more than a yard out. Lovely play from Kagawa to create that equaliser.
Another foul from Nolan, this time on Rooney. Been pulled up a few times now when his enthusiasm has just got the better of him and, while none of his offences have been particularly nasty, he will just need to be careful if he's to stay out of the referee's notebook.
Man United's best attack sees Rooney set Evra clear on the left, but his cutback is cleared and West Ham calmly play the ball away from trouble.
Rooney tries to set Van Persie through, but Collins reads it and easily intercepts. From back to front, West Ham have been exceptional thus far.
Andrew: "Regarding West Ham's goal, in my opinion Rooney was at some fault for the goal not getting back quicker when only a few yards behind the advancing Diame. Also Rafael should have seen the run of Vaz Te rather than post. Good goal however."
Nothing comes of the West Ham throw, but with Man United back in possession the hosts are again quick to close their opponents down and give the champions elect no time on the ball.
Vaz Te swings in a cross from the right, but it's overhit. Credit to Jarvis, though, whose persistence forces Rafael to concede a throw.
Carrick finds Kagawa in space on the edge of the West Ham box, but by the time he's turned to get his shot away Collins has closed down the space and blocks. Jarvis completes the clearance.
Jarvis looking to get in again, but he's bundled off the ball by Ferdinand and half-hearted, optimistic appeals for a penalty are waved away.
Rafael crosses low from the right as Man United look to respond straight away, but it's easy for Jaaskelainen.
GOAL - VAZ TE! And what a break. Jarvis is released down the left. He jinks his way to the byline and stands up a great cross to the back post. Carroll heads it back across goal, and Vaz Te is on hand to nod home from close range. Fully deserved.
Rooney tries a one-two with Kagawa on the edge of the West Ham box, but it goes awry and the home side can break.
Jones again reads the danger from Nolan and again wins a free-kick after being caught by the West Ham man while clearing the ball.
Good run from Evra down the left, but he cuts inside and runs into a Collins-shaped brick wall. West Ham back in possession.
Spell of possession for Man United in the middle of the park calming the game down after a frantic opening.
Carroll shoots just wide from the edge of the penalty box. Kevin Nolan almost gets a touch on it which would surely have diverted the ball into the goal, but the offside flag would've denied him.
First Man United attack, with Carrick and Rooney looking to set Van Persie away, but Collins is on hand to clear.
Carroll already making a nuisance of himself in the Manchester United penalty area, but the visitors get the ball to safety.
Ed Aspen: "Van Persie's goal drought to be well and truly obliterated this evening; propelling him to the summit of the Golden Boot list - 0-4"
Ben: "I know I shouldn't doubt fergies team selections but can't understand why he keeps picking Valencia. He hasn't been the same player this season but yet plays nearly every game. United will still be too strong, I'm predicting a 3-1 win with Van Persie getting 2 and Kagawa getting the other."
Chris Green: "I'm really looking forward to this evening's match - this game is going to be a cracker. Coming to Upton Park is difficult for any team but I don't think Manchester United will have any problem here this evening. My prediction: West Ham 0-2 Man Utd"
West Ham XI: Jaaskelainen, Reid, Nolan, Jarvis, Carroll, Vaz Te, O'Brien, Collins, Demel, Diame, O'Neil.
Man Utd XI: De Gea; Rafael, Ferdinand, Vidic, Evra; Valencia, Jones, Carrick, Kagawa; Rooney, Van Persie.