'Too much time!'published at 16:46 GMT 12 January
Crystal Palace 1-0 Stockport
Conor McNamara
Commentator on BBC Radio 5 Sports Extra
Jefferson Lerma had too much time! The midfielder could have sealed it but couldn't find the target.
Use 'watch and listen' tab to select your commentary
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
Get Involved: #bbcfootball, via WhatsApp on 03301231826 or text 81111 (UK only, standard message rates apply)
Joe Rindl, Emma Smith & Tom Rostance
Crystal Palace 1-0 Stockport
Conor McNamara
Commentator on BBC Radio 5 Sports Extra
Jefferson Lerma had too much time! The midfielder could have sealed it but couldn't find the target.
Arsenal 1-1 Man Utd
Eight minutes to go. Arsenal want to win this one in normal time as Gabriel Martinelli crosses but Harry Maguire heads away.
Crystal Palace 1-0 Stockport
Steve Sidwell
Former Brighton midfielder on BBC Radio 5 Sports Extra
You feel when Palace move the ball at pace and use the width of the pitch an opening will happen.
Can they kill it off?
Arsenal 1-1 Man Utd
Toby Collyer is a defensive midfielder and is making just his fourth first-team appearance.
Interesting that he came on ahead of Casemiro.
#bbcfootball, WhatsApp 03301231826, text 81111 (UK only, standard rates apply)
People moaning about not having VAR, on the evidence this season do you really think they'd have actually overturned that penalty? VAR more often than not ends up with the same wrong decision but takes an extra 5 minutes to get there.
Thomas
Arsenal 1-1 Man Utd
The corner is cleared.
Triple change for United. Off come Alejandro Garnacho, Kobbie Mainoo and Rasmus Hojlund.
On come Amad Diallo, Joshua Zirkzee and youngster Toby Collyer.
Southampton 0-0 Swansea
Southampton have made the more pressing start at St Mary's with full-back Kyle Walker-Peters firing over from a tight angle the closest we have come so far.
Ipswich Town 3-0 Bristol Rovers
If you needed an example of how easy this game is for Ipswich, Kieran McKenna is changing his keeper.
He gives a debut to Cieran Slicker, replacing Ari Muric.
Slightly disrespectful to Bristol Rovers, but then again the League One side have had two shots all game so far.
Arsenal 1-1 Man Utd
Altay Biyindir is back to his feet and Arsenal will prepare for a corner.
Here's their goal:
Gabriel Magalhaes equalises against Manchester United
Newcastle 3-1 Bromley
Indeed.
'It's a cracker' - Osula scores first Newcastle goal
Arsenal 1-1 Man Utd
Altay Bayindir is taking his time to get back to his feet.
Here's the tackle that led to Diogo Dalot's sending off. Thoughts?
Dalot sent off after reckless tackle
Arsenal 1-1 Man Utd
Alan Shearer
Former England striker on BBC One
Declan Rice should score, it's a complete free header.
Wonderful save. It should be in the back of the net.
Big, big opportunity. He should guide that across him and put more power behind it.
Arsenal 1-1 Man Utd
Altay Bayindir is having a brilliant game!
Martin Odegaard chips in a fine ball and Declan Rice is free in the middle, but his header is somehow tipped over by the twisting Turkish keeper.
Manchester United are on the ropes.
#bbcfootball, WhatsApp 03301231826, text 81111 (UK only, standard rates apply)
Justice! People moan about VAR, but surely that whole incident shows why we need it?!
Sean, Relieved Spurs fan
Now we miss VAR!
Viren, from Croydon
Anyone missing VAR?
Nick, Essex
Arsenal 1-1 Man Utd
Manchester United are preparing some changes. Where does this game go from here? It's been a cracking second half, full of tension.
Ipswich Town 3-0 Bristol Rovers
Kieran McKenna is using this game as a training exercise, a chance to give minutes to squad players.
Harry Clarke, Nathan Broadhead and George Hirst have all come on in the second half.
Hirst nearly taps home a dangerous low cross from a yard out, but the cross is cut out last second by a defender.
Arsenal 1-1 Man Utd
Alan Shearer
Former England striker on BBC One
Manchester United will have to take the sting out of this game somehow.
They will have to keep hold of the ball and keep passing it around.
It's going to be very very difficult though.
Manchester United were in a really great position, it was a really poor decision [from Diogo Dalot] to go in for that tackle.
#bbcfootball, WhatsApp 03301231826, text 81111 (UK only, standard rates apply)
Justice. Never a pen.
Jon, Eastleigh
Instant karma. Arsenal didn't deserve the penalty and rightly been denied.
Aravind, Derby
A bit of justice there. The pen was very harsh.
Pete
Arsenal 1-1 Man Utd
Here's a replay of the first goal:
Bruno Fernandes scores great goal against Arsenal
Crystal Palace 1-0 Stockport
Into the last 15 minutes at Selhurst Park and the League One side are still in the tie. Can they find a way through though?