Use play icon to watch 5 Live Final Score from 19:00 GMT
Liverpool's injury-time equaliser makes it 5-5 in ridiculous game - Curtis Jones scores winning penalty
Rashford's stunning free-kick gives Man Utd win at Chelsea
Result: Aston Villa 2-1 Wolves: (El Ghazi, El Mohamady; Cutrone)
Quarter-final draw live on Thursday at 08:45 GMT on the Zoe Ball Breakfast Show on BBC Radio Two
Chelsea 0-0 Manchester United
BBC Radio 5 Live Sports Extra
And there's also live comms from the Bridge on Sports Extra. Again, you can listen at the top of the page.
John Southall and Clinton Morrison are behind the mics.
Stephen Warnock
Ex-Liverpool defender on Radio 5 Live
It's lazy play from Harvey Elliott, he tries to play a square pass and its intercepted. It was a lovely ball from Ozil to Saka and then a beautiful ball from Saka.
The movement from Saka was brilliant. Once he knew Mesut Ozil was getting the ball, he was on his way because he knew that Ozil would find him.
Aston Villa 0-0 Wolves
Signs that the hosts are starting to build some pressure at Villa Park.
Villa's Conor Hourihane sees his free-kick blocked and Douglas Luiz then blasts an effort into a Wolves defender.
Resolute stuff from the visitors.
Liverpool 1-3 Arsenal
Mesut Ozil is enjoying himself, he now pirouettes into space and finds Ainsley Maitland-Niles on the overlap and his low cross is just about hacked clear.
#bbcfootball or text 81111 (UK only)
Ozil starts and suddenly we look threatening going forward. Coincidence? I think not.
Abhinav, London
#bbcfootball or text 81111 (UK only)
I'm the only one that doesn't see the hype in Keita? He hasn't done anything since he come to Liverpool.
Henry
Hopefully the fans of Ox & Lallana are watching this match. So, so poor they're making Arsenal look good.
Anon (remember to include names on texts please)
Gabriel Martinelli (36 mins)
Predator!
If you play youngsters they will make mistakes, that's the way it goes. Harvey Elliott on the left wing plays it inside but misses Joe Gomez and finds Mesut Ozil instead.
Ozil helps it around the corner to Bukayo Saka, he squares it and that man Gabriel Martinelli is free to slam into the back of the net.
Chelsea 0-0 Manchester United
And we're off and running in tonight's third and final game.
Stephen Warnock
Ex-Liverpool defender on Radio 5 Live
Liverpool's best spell in the last five minutes. It was good skill by Origi on the left-hand side. It was good defending by Mustafi in the end.
Liverpool 1-2 Arsenal
He looks like some signing. A loan spell in January?
Liverpool win a corner after a cracking ball from James Milner.
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#bbcfootball or text 81111 (UK only)
Lot of Liverpool fans moan on that Keita and Ox should start every game. They've been dreadful so far.
Dan, London
Liverpool 1-2 Arsenal
No sense of panic from the hosts despite falling behind, as Rhian Brewster floats a header on target. No real power behind it though.
Stephen Warnock
Ex-Liverpool defender on Radio 5 Live
Arsenal have responded really well. Ozil has been at the heart of everything that's happened. He's calm on the ball and picks the right passes.
Chelsea v Manchester United (20:05 GMT)
Here come the players at Stamford Bridge.
Aston Villa 0-0 Wolves
First chance of the night for Villa and Trezeguet sees his low shot well saved by the legs of John Ruddy. Full house, top atmosphere.
Stephen Warnock
Ex-Liverpool defender on Radio 5 Live
Maitland-Niles skipped around Origi too easily, it was poor defending from him. It was another brilliant save from Kelleher initially.
What a turnaround in events this is.
Gabriel Martinelli (26 mins)
Arsenal have turned this one around! A bit of a shambles at the back as Ainsley Maitland-Niles' cross is deflected on goal, Caoimhín Kelleher makes a sharp one-handed save but the fox in the box Gabriel Martinelli is there to lash into the roof of the net, Kop end.
Chelsea v Manchester United (20:05 GMT)
Manchester United
Manchester United boss Ole Gunnar Solskjaer to Sky Sports on naming a strong team: "We want to keep the momentum going. The players are fit, they want to play. We felt this team can cause Chelsea problems.
"They've got a strong side too. It will be a good game. We had a good game against them on the opening day.
"The boys are in good condition. The fitness is getting better and players are coming back from injury. I feel we're strong and can't wait to play another game."
Stephen Warnock
Ex-Liverpool defender on Radio 5 Live
By the letter of the law it is a booking. He stopped a counter attack starting, it's a yellow card for me.