Shrewsbury v Liverpool - watch on BBC One & online
Cummings penalty and fine individual goal see Shrewsbury fight back from 2-0 down
Teenager Jones had opened scoring before Love's own goal immediately after break
Relentless Man Utd put six past Tranmere
Holders Manchester City put four past 10-man Fulham to reach fifth round
Watch The FA Cup Channel now using play icon at the top of the page
Tranmere 0-6 Man Utd
Connor Jennings wins a header inside the United box but he's way out from the goal and it goes straight out for a goal kick.
Tranmere are seeing a little bit more of the ball now but there's not much happening in general.
Tranmere 0-6 Man Utd
Karen Carney
Former England winger on BBC Radio 5 Live
Harry Maguire got a massive round of support from the Manchester United fans. He has been outstanding today. When you need your captain to step up and lead through that rocky period he stood up and was accountable. He got that wonderful goal, got himself an assist and has just been pure class.
Tranmere 0-6 Man Utd
Tranmere's record defeat in the FA Cup is a 9-1 loss against Tottenham.
Manchester United's biggest FA Cup win was 7-0 vs Acrrington Stanley (and 8-2 vs Northampton Town).
Tranmere 0-6 Man Utd
Mason Greenwood combines with Diogo Dalot on the right and the full-back fizzes an early shot towards the near post.
Scott Davies has to flap it away.
Tranmere 0-6 Man Utd
37-year-old David Perkins makes way for Harvey Gilmour for Tranmere.
Tranmere 0-6 Man Utd
That's Harry Maguire's day done. He's got his goal, he's done his job.
On comes Brandon Williams.
Tranmere 0-6 Man Utd
Karen Carney
Former England winger on BBC Radio 5 Live
It's been a very clinical, professional performance from Manchester United. It was a bit nervy in the opening 10 minutes when Tranmere were all over them but Harry Maguire stepped up with a wonderful strike and it just went on from there. It's just been a classy Manchester United performance.
Tranmere 0-6 Man Utd
Tahith Chong is caught napping a little by Connor Jennings and Tranmere break quickly through Morgan Ferrier on the left.
He gets away and only has the keeper to beat but his run takes him wide. He panics a little and ends up skewing his effort straight into the side-netting. Big chance!
Use #bbcfacup or text 81111 (UK only)
There will be plenty of people saying it's only Tranmere. It was only Tranmere when they played Watford and came back to draw 3 all before beating them at Prenton park. This was a Watford rejuvenated by Pearson and in much better form than Utd.
Anon
Tranmere 0-6 Man Utd
Simon Stone
BBC Sport at Prenton Park
Harry Maguire had the final say over who was taking that penalty.
He stepped in and gave the ball to 18-year-old Mason Greenwood, who sent Scott Davies the wrong way.
The Tranmere fans are still singing. It's all they have left now.
Tranmere 0-6 Man Utd
Karen Carney
Former England winger on BBC Radio 5 Live
Andreas Pereira stepped up to take the penalty and Harry Maguire ran over and said: "No, it has to be Mason Greenwood."
I think that was more a signal from the manager to say that United need their striker to get on the scoresheet. He scuffed it but he has been a bit quiet today so he will be happy to get on the scoresheet.
Shrewsbury Town v Liverpool (17:00 GMT)
BBC One
This match is also on the telly. Build-up starts at 16:30 GMT, so only 15 minutes away.
Tranmere 0-6 Man Utd
That was a really nice build-up from United on the edge of the box before it was squeezed through to Tahith Chong.
He reacted quickest and used his pace to get there first.
Mason Greenwood celebrated behind the goal as fans throw toilet roll onto the pitch. He returned the favour.
Mason Greenwood
Cool as you like. Straight into the left corner. Scott Davies dives the wrong way.
Greenwood converts from the spot after Chong is fouled by keeper Davies
Tranmere 0-5 Man Utd
Clear as day!
Tahith Chong gets there first, pokes it past the keeper and is then brought down by Scott Davies.
Comfortable decision and the keeper gets a yellow card too.
Use #bbcfacup or text 81111 (UK only)
You get the feeling this might be a defining year for the future of Manchester United. Sacking Ole, or a lack of serious and sensible investment into the squad over the next 12 months could (and should) kick-start some real anger towards our profit driven owners who are ruining this club
Tom
United haven't put 5 past anyone since Fergie and that was a draw with West Brom so a bit of support should be given. Ole is building something and yes, plenty need to leave but give him time - we started with criticism and a Mark Robins goal before so back the man!
Ben, St Albans
Shrewsbury v Liverpool (17:00 GMT)
Shrewsbury Town, 16th in League One, make one change to the side that drew 2-2 at Fleetwood last time out.
Sean Goss returns to the side in place of former Wolves and Wales midfielder Dave Edwards, who is on the bench.
Shrewsbury Town XI: O'Leary, Pierre, Williams, Ebanks-Landell, Love, Goss, Laurent, Norburn, Golbourne, Lang, Whalley.
Substitutes: Murphy, Edwards, Beckles, Walker, Udoh, Cummings, Hart.
Liverpool have not reached the fifth round of the FA Cup since 2015 and boss Jurgen Klopp puts his faith in a number of young players.
Among the starters are 19-year-old Algerian defender Yasser Larouci, 16-year-old Harvey Elliott and 18-year-old Neco Williams.
Brazil midfielder Fabinho, Dejan Lovren (captain for the day) and Divock Origi are among the senior players on duty. Mo Salah forms part of a very strong substitutes bench.
Liverpool XI: Adrian, Williams, Matip, Lovren, Larouci, Fabinho, Chirivella, Jones, Minamino, Elliott, Origi.
Substitutes: Kelleher, Keita, Firmino, Salah, Oxlade-Chamberlain, Hoever, Alexander-Arnold.
Image source, Rex FeaturesTranmere 0-5 Man Utd
Luke Shaw tries to slip it through to Tahith Chong but the ball almost stops dead in a giant mud puddle near the touchline!
Tranmere 0-5 Man Utd
Karen Carney
Former England winger on BBC Radio 5 Live
Sergio Romero has looked really comfortable on aerial balls. I know it is a different level of team perhaps, but if he keeps a clean sheet, is that something to talk about potentially?
Tranmere 0-5 Man Utd
Diogo Dalot is found on the edge of the box but he has a heavy touch and loses possession. He reacts well, tracking back to nick the ball off Corey Blackett-Taylor