Postpublished at 17:47 Greenwich Mean Time 12 January
Martin Odegaard up next. He's already missed one today.
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Ten-man Man Utd beat Arsenal on penalties
Newcastle, Ipswich, Southampton & Crystal Palace go through
Fifth-tier Tamworth take Tottenham to extra time as Doncaster beat Hull on penalties
Fourth-round draw follows Arsenal v Man Utd
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Joe Rindl, Emma Smith & Tom Rostance
Martin Odegaard up next. He's already missed one today.
Bruno Fernandes
David Raya goes left, Fernandes slots it to the keeper's right.
Bruno Fernandes will take the first one.
FT: Arsenal 1-1 Man Utd
Theo Walcott
Former England forward on BBC One
Arsenal have been in this position and Raya is a calming influence - I'm expecting Arsenal to get a result.
FT: Arsenal 1-1 Man Utd
Alex Howell
BBC football news reporter at the Emirates Stadium
Penalties are going to be at the end of the stadium where the Manchester United supporters are.
FT: Arsenal 1-1 Man Utd
Theo Walcott
Former England forward on BBC One
I do hope Arsenal take their penalties better than their finishing today.
It will be interesting to see how Martin Odegaard deals with that because you would expect him to take that penalty.
FT: Arsenal 1-1 Man Utd
Micah Richards
Former England defender on BBC One
The Liverpool result has given them confidence and they have carried that on.
Arsenal 1-1 Man Utd
Bruno Fernandes and Martin Odegaard meet in the middle.
Manchester United get to choose the end, so we'll have this shootout in front of the away fans.
FT: Arsenal 1-1 Man Utd
Micah Richards
Former England defender on BBC One
Arsenal had the opportunities. They have go to be more clinical.
They do all the fancy bit and get into the final third, but then they've got to punish teams.
Arsenal 1-1 Man Utd
Arsenal have won four of their five shoutouts under Mikel Arteta.
Arsenal 1-1 Man Utd
Manchester United beat Coventry on penalties in last year's semi-final. They lost the Community Shield final on penalties against Manchester City at the start of this season.
Arsenal 1-1 Man Utd
The only previous FA Cup tie between these two sides that went to pens was the 2005 FA Cup final, won by Arsenal.
FT: Arsenal 1-1 Man Utd
Alan Shearer
Former England striker on BBC One
Manchester United have done the job that they set out to do.
They had to get to this situation and they have done it.
Southampton 2-0 Swansea
While you wait for pens, an update - Southampton should have made it 3-0, Jan Bednarek found himself free at the end of an Arsenal-style corner to the far post but headed straight at Jon McLaughlin in the Swansea goal.
Arsenal 1-1 Man Utd
It's all over!
Arsenal 1-1 Man Utd
Headed. Blocked. Cleared.
Arsenal 1-1 Man Utd
One minute added on. Thomas Partey's shot deflects over.
One last chance.
Arsenal 1-1 Man Utd
What was Arteta thinking bringing Sterling on that early?
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The thing about Arsenal is, they always try and walk it in.
Nathan
Arsenal 1-1 Man Utd
Only the Manchester United supporters are cheering now. Their fans fancy a shootout.