Postpublished at 21:15 Greenwich Mean Time 9 March 2015
Last 20 minutes then. Who's going to do a Ryan Giggs for Manchester united? Or are Arsenal going back to Wembley? She wore a yellow ribbon etc...
Summary
Arsenal through to semi-finals
Welbeck scores winner against old club
Di Maria sent off after grabbing referee
Semi-final draw: Bradford/Reading v Arsenal; Aston Villa v Liverpool/Blackburn
Postpublished at 21:15 Greenwich Mean Time 9 March 2015
Text us on 81111published at 21:13 Greenwich Mean Time 9 March 2015
Image source, APAde: "A player celebrating against a former club?! What is going on?! Isn't that against the rules nowadays?"
Join the debate at #bbcfacuppublished at 21:13 Greenwich Mean Time 9 March 2015
Daniel Hemmings: You've got to feel for De Gea, he needs some defenders in front of him!
Nick Staddon: Good to see Welbeck celebrating against his former team, they didn't believe in him, Arsenal did!
Damian Fogarty: And that's why Welbeck is on instead of Giroud. Big pitch favours speed.
Postpublished at 21:13 Greenwich Mean Time 9 March 2015
You can say what you like about Marouane Fellaini, but chip a ball to the back post and he's a menace. The Belgian climbs well to thump in a header and Wojciech Szczesny has to watch it all the way to gather it in.
The two sets of fans trade derogatory chants about strikers Danny Welbeck and Robin van Perise, who have swapped clubs. Who got the better deal?
Postpublished at 21:11 Greenwich Mean Time 9 March 2015
Phil McNulty
BBC Sport chief football writer"The rising noise levels around Old Trafford carry a hint of desperation as well as a desire to urge Manchester United forward. So much riding on these next 25 minutes for United and manager Louis van Gaal."
Text us on 81111published at 21:11 Greenwich Mean Time 9 March 2015
Dan in London: "You can have lucky wins, put Rooney in different positions and have a clipboard but persist with this horrible defence and Man Utd are going nowhere fast."
SUBSTITUTIONpublished at 21:10 Greenwich Mean Time 9 March 2015
Hector Bellerin is hauled off before he gets sent-off. Calum Chambers is the man sent on to take his place at right-back.
CLOSE!published at 21:10 Greenwich Mean Time 9 March 2015
More trauma for Chris Smalling! He puts one over the bar from four yards out after a corner whips through the six-yard box. What a chance!
Postpublished at 21:09 Greenwich Mean Time 9 March 2015
Phil Neville
BBC Radio 5 live"The Arsenal bench are hurriedly organising to make a change to get Bellerin off."
YELLOW CARDpublished at 21:09 Greenwich Mean Time 9 March 2015
Marcos Rojo is booked for a wild challenge and Hector Bellerin is perhaps lucky not to see a second booking, followed by a red! He and Ashley Young tangle, they both go down and they are both already on a yellow...
Text us on 81111published at 21:08 Greenwich Mean Time 9 March 2015
James Marshall: Wayne Rooney's worth his weight in gold for United.
Matt in Leicester: Would love to see £37m Juan Mata come on for Fellaini, I reckon his link up with Di Maria, Young and Rooney would be far more effective. But LVG doesn't seem to value him, strange!
Join the debate at #bbcfacuppublished at 21:08 Greenwich Mean Time 9 March 2015
Sophie Manders: Danny Welbeck! What a guy.
Postpublished at 21:07 Greenwich Mean Time 9 March 2015
Phil Neville
BBC Radio 5 live"Brilliant centre forward play from Danny Welbeck, he smelt the danger, he sensed there was going to be an error. The speed just to get to that ball and then get round De Gea, I just wonder if his sale will come back to haunt Man United?"
Postpublished at 21:07 Greenwich Mean Time 9 March 2015
Danny Murphy
BBC One"What a gift for Arsenal. Danny Welbeck hasn't had one of his best games. But he keeps working, he keeps going, he keeps chasing."
GOALpublished at 21:05 Greenwich Mean Time 9 March 2015
Image source, ReutersI take it all back Danny Welbeck! He's not had a good game but he's put Arsenal ahead after a horror show at the back from Manchester United. Antonio Valencia's backpass is woefully undercooked, Welbeck is in on David De Gea, he gets there first and toes it around the keeper before sliding in the loose ball. He celebrates too against his old club. Wildly.
YELLOW CARDpublished at 21:05 Greenwich Mean Time 9 March 2015
Another booking, and it's for Ashley Young as he suplexes Danny Welbeck out on the touchline. United getting ragged perhaps but hang on, here's Angel Di Maria, looking like an ex-Real Madrid player for once, beating a man and shooting just wide from 22 yards.
Postpublished at 21:04 Greenwich Mean Time 9 March 2015
Phil McNulty
BBC Sport chief football writer"Scrappy start to the second half but Arsenal are playing on Manchester United defender Chris Smalling's nerves in and out of possession - and he is giving them plenty of encouragement."
Text us on 81111published at 21:03 Greenwich Mean Time 9 March 2015
Ben from the Wirral: "Chris Smalling must have had a traumatic experience with a football when he was younger. He looks absolutely terrified whenever it comes near him."
Postpublished at 21:03 Greenwich Mean Time 9 March 2015
Phil Neville
BBC Radio 5 live"I think Daley Blind is really struggling with that central midfield role. The game just seems to be passing him by there at the moment, he can't seem to handle the pace."
YELLOW CARDpublished at 21:03 Greenwich Mean Time 9 March 2015
Image source, Getty ImagesMarouane Fellaini earns himself a booking for two clumsy hacks in a matter of seconds. The 5-a-side special that one, a slow, languid hack to trip his man up.