93' Gibbs looks to seal his debut with a goal from distance, but Bennett drops to his left to make a comfortable save. And the referee's whistle goes! United's misery is over. Arsenal stroll into the last eight.
89' Arsenal go close! Denilson cuts in from the left and fires in a right-footed shot from 20 yards, but it bounces a couple of yards wide.
88' Wenger makes his third change. Diaby comes off, and Fran Merida - the young Spaniard allegedly 'poached' from Barcelona - enters the fray.
85' There'll be no hat-trick for Eduardo. He is firmly challenged by Armstrong, and hops off to be replaced by Dutch debutant Nacer Barazite.
83' Pass and move, pass and move. It's a bit like watching a training exercise at times. Wenger decides it's time for a change. Walcott makes way for flaxen-haired young Frenchman Henri Lansbury.
74' Robson makes his third and final change. Northern Ireland winger Keith Gillespie comes on for Michael Tonge. David Carney switches to the left flank.
71' Chance for United! A free kick from the left finds Chris Lucketti unmarked at the back post, but his left-footed half-volley is kneed off the line by Gilberto!
69' GOAL! 3-0 Arsenal! Denilson is given room to take aim from 25 yards, and his right-footed shot clips Chris Morgan's backside and flies over Bennett! Barring a miracle of frankly Biblical proportions, Arsenal are in the quarter finals.
65' Chance for Arsenal, and Walcott hits the post! He races onto a through-ball from Bendtner, holds off Armstrong and takes the ball round Bennett, but from a tight angle his effort hits the near post and rebounds to safety!
63' Changes for Sheffield United. Stephen Quinn and Jon Stead make way for Alan Quinn and Danny Webber.
53' Chance for United! Montgomery plays a terrific ball into the box, but Stead, stretching, puts it over the bar!
50' GOAL! 2-0 Arsenal! And that could be curtains for United. Gibbs threads a lovely ball right through the heart of the home defence, and Eduardo scampers onto it and passes the ball past Bennett for his second goal of the game.
46' Arsenal kick things off in the second half. Has Bryan Robson done enough at half-time to provoke a reaction from his men?
46' Denilson dinks a clever ball goalwards, Walcott gets a touch but can't get a shot in. And that's the last action of the first half! Arsenal have been completely on top here, but the home side aren't out of it yet.
38' Chance for Arsenal, but Walcott wastes it! Diaby slides him in down the inside-right channel, but with only the keeper to beat he slices the ball wide from about 15 yards.
29' A nervy moment for the home side! Ian Bennett is put under pressure by a bad back-pass, but he just manages to clear the ball with Bendtner closing in.
12' Sight of goal for Arsenal. Walcott breaks down the right and cuts the ball back to Denilson, but the young Brazilian rather rushes his shot and it flies well over.
8' GOAL! 1-0 Arsenal! And it's an absolute belter from Eduardo da Silva! Nicklas Bendtner finds his striking partner on the left, and he unleashes an unstoppable left-footer that fizzes into the top left corner!
4' An early chance for United! A ball into the box isn't dealt with, and Lukasz Fabianski reacts well to block a shot by Billy Sharp from close range. Great start here by Bryan Robson's men!
1' The first half is underway!
89' Arsenal go close! Denilson cuts in from the left and fires in a right-footed shot from 20 yards, but it bounces a couple of yards wide.
71' Chance for United! A free kick from the left finds Chris Lucketti unmarked at the back post, but his left-footed half-volley is kneed off the line by Gilberto!
69' GOAL! 3-0 Arsenal! Denilson is given room to take aim from 25 yards, and his right-footed shot clips Chris Morgan's backside and flies over Bennett! Barring a miracle of frankly Biblical proportions, Arsenal are in the quarter finals.
65' Chance for Arsenal, and Walcott hits the post! He races onto a through-ball from Bendtner, holds off Armstrong and takes the ball round Bennett, but from a tight angle his effort hits the near post and rebounds to safety!
53' Chance for United! Montgomery plays a terrific ball into the box, but Stead, stretching, puts it over the bar!
50' GOAL! 2-0 Arsenal! And that could be curtains for United. Gibbs threads a lovely ball right through the heart of the home defence, and Eduardo scampers onto it and passes the ball past Bennett for his second goal of the game.
38' Chance for Arsenal, but Walcott wastes it! Diaby slides him in down the inside-right channel, but with only the keeper to beat he slices the ball wide from about 15 yards.
29' A nervy moment for the home side! Ian Bennett is put under pressure by a bad back-pass, but he just manages to clear the ball with Bendtner closing in.
12' Sight of goal for Arsenal. Walcott breaks down the right and cuts the ball back to Denilson, but the young Brazilian rather rushes his shot and it flies well over.
8' GOAL! 1-0 Arsenal! And it's an absolute belter from Eduardo da Silva! Nicklas Bendtner finds his striking partner on the left, and he unleashes an unstoppable left-footer that fizzes into the top left corner!
4' An early chance for United! A ball into the box isn't dealt with, and Lukasz Fabianski reacts well to block a shot by Billy Sharp from close range. Great start here by Bryan Robson's men!
Sheffield UnitedManager: Bryan Robson
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ArsenalManager: Arsene Wenger
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