It's been another busy day of FA Cup and Champions League chat.

We have brought you reaction to huge cup shocks north and south of the border, [lack of] VAR controversies, a manager under pressure and the big build-up to what we hope will be a Champions League belter.

You can catch up on all the key talking points using the links in this page's summary.

Thanks for joining us and see you again tomorrow.

Image source, Getty Images

We can't wait for Tuesday's heavyweight Champions League clash, but before that the FA Cup action continues tonight.

Doncaster Rovers - now the lowest-ranked side left in the competition - host Crystal Palace.

You can watch live on BBC iPlayer, Red Button and the BBC Sport website & app. There's also commentary on BBC Radio 5 Live.

Watch and follow our live text here.

Simon Stone
BBC Sport's chief football news reporter

Image source, Reuters

Nico Gonzalez, Ederson, Nathan Ake and Jeremy Doku are all training ahead of Manchester City’s Champions League encounter with Real Madrid.

Ederson, Ake and Doku have all missed recent games through injury.

Gonzalez had been a doubt after being substituted in the first half of Saturday’s win at Leyton Orient.

Matheus Nunes and Oscar Bobb are not training.

Manchester City

We've been scanning the feed to try and spot Nico Gonzalez in a sea of khaki training tops and wooly hats.

At last we have spotted him in his blue boots. The fact he's training will be a big boost for Pep Guardiola's side.

Manchester City

For the avoidance of doubt, this is a picture of Nico Gonzalez - the new Manchester City signing who has been marked down as an injury doubt for Tuesday's Champions League game at home to Real Madrid.

There have been conflicting reports on social media about whether he was training.

BBC Sport's chief football news reporter Simon Stone is at the training ground and has confirmed that Gonzalez is taking part in the session.

Whether or not he will be fit to play tomorrow is another story...

Image source, Getty Images

Manchester City

Just a reminder that we are waiting to watch Manchester City's last training session before Tuesday night's Champions League play-off first leg at home to Real Madrid.

The players were due out at about 15:00 GMT but we understand that they often do their warm-up in the gym before taking to the field.

It looks like they are on their way out now.

Watch using the live tab at the top of this page...

You wouldn't have wanted to disagree with Didier Drogba on the night in question...

May 2009 - Chelsea's Champions League semi-final second leg vs Barcelona at Stamford Bridge. Not a night for the faint-hearted...

Image source, Getty Images

Image source, Getty Images

The fifth-round draw will take place during tonight's episode of The One Show on BBC One and BBC iPlayer.

Former England winger Theo Walcott, who won the trophy twice while with Arsenal, will conduct the draw at about 19:10 GMT.

Well if there are any Real Madrid fans out there who would care to comment, that would be great!

Aston Villa

Aston Villa have announced the signing of central defender Yasin Ozcan from Turkish Super Lig side Kasimpasa on a pre-contract agreement.

Ozcan, 18, has represented Turkey at under-16s, u17s and u21s level and has made 21 appearances in the Super Lig this season.

He will spend the remainder of the campaign with Kasimpasa before joining up with Villa ahead of next season.

Image source, Getty Images

Simon Stone
BBC Sport's chief football news reporter

There was an absence of team news questions in Pep Guardiola's news conference earlier so it will be interesting to see who is training for Manchester City when the media are allowed in for the first 15 minutes.

Guardiola threw a curve ball before last month's defeat at Paris St-Germain when he didn't send any of his defenders out to train - and it transpired Ruben Dias was carrying a knock.

The main focus will be on whether Nico Gonzalez is there.

The £50m new-boy didn't even reach half-time on his debut at Leyton Orient after getting injured in the build-up to Jamie Donley's amazing shot that led to the home side's goal.

Image source, Getty Images

Manchester City

Just a reminder that Manchester City are due to take to the training complex at the Etihad campus any time soon ahead of the first leg of their Champions League play-off against Real Madrid tomorrow.

Pep Guardiola didn't give any team news in his media conference earlier this afternoon, so we'll be casting a beady eye over who's out there and more importantly who isn't.

The plan is to stream the training session in this page, all being well.

Click 'watch live' at the top of the page and wait for the feed to drop in.

Simon Stone
BBC Sport's chief football news reporter

There is normally a handful of cameras to watch the open section of Manchester City training ahead of a normal Champions League game.

The visit of Real Madrid, even for a play-off, is not normal.

There are loads of cameras here and suspect there will be even more when Jude Bellingham and co train at the main stadium at 19:00 GMT.

Image source, BBC Sport

Brighton might have had their winner against Chelsea disallowed for a Tariq Lamptey handball so perhaps it is not a huge shock that boss Fabian Hurzeler enjoyed a weekend without VAR.

"That's football," he told BBC Sport. "With VAR, football is getting not that emotional like it was today.

"Everyone agrees with me that today was a great atmosphere. You can celebrate a goal because you are certain it's a goal. I'm happy it was like that."

Some were less convinced, including his Chelsea counterpart Enzo Maresca - whose side might still be in the FA Cup with VAR, albeit as it was an accidental handball and Lamptey did not score the goal himself, it may still have stood.

"I think the handball is quite clear. In the last two or three days, there were many different moments in different games that, without VAR, sometimes are more complicated," said Maresca.

However he added: "Sometimes even with VAR, you never know if it's [going to be given as] handball or not. I don't know. This season we saw so many handballs and the VAR was not there."

We have been conducting a poll today on whether football is better without VAR.

The results are currently split, with 58% saying that it is, and 42% believing it is not.

The poll is still open at the top of this page so please join in and make your choice...

Manchester United manager Ruben Amorim admitted his side were fortunate after their winning goal stood despite Harry Maguire being offside.

He feels it vindicates the use of VAR, even if his side benefited on this occasion from its absence.

"With VAR it's not a goal," he said.

"I think it's important to have VAR because it's fair for the game. It's hard to lose like that with an offside play. But we deserve a little bit of luck."

Image source, Getty Images

Leicester manager Ruud van Nistelrooy was not at all happy about the lack of VAR after his side were beaten by Harry Maguire's last-minute goal at Manchester United.

Replays showed the defender was offside but the assistant referee did not raise his flag and with the technology to correct the decision not in use, the goal stood and Leicester went out.

"We are not defeated in Fergie time, we are defeated in offside time," the former Manchester United striker told ITV after his side were beaten in round four.

Having had a bit more time to digest the outcome when he faced the media around an hour after full-time, Van Nistelrooy was no calmer about the situation.

"We are gutted," he said.

"When you prepare for the whole week for this game and reacting after the Everton loss and put in a performance like that but it is decided on a clear and obvious mistake, that is unacceptable and unthinkable at this level.

"We have nothing else to do but pick ourselves up. It is not what the team deserved."

Match: Manchester United 2-1 Leicester City

What happened? Harry Maguire scored a controversial stoppage-time winner for FA Cup holders Manchester United, heading in Bruno Fernandes' free-kick in the 93rd minute. But while replays showed Maguire was clearly offside from the set-piece, it was not picked up by the on-field officials.

Match: Blackburn 0-2 Wolves

What happened? With the score at 0-0, Blackburn's Dominic Hyam guided a header past Sam Johnstone at the back post from John Buckley's free-kick. The linesman's offside call stood with no VAR, even though in some replays he looked onside.

For anyone who has been with us all day, we asked you a question this morning about the four teams that have lost to lower league opposition when top of the Premier League.

Liverpool's defeat at Plymouth put them into this heady list, but who were the other three?

Well Kacper nailed it:

Match: Birmingham City 2-3 Newcastle United

What happened? Birmingham City goalkeeper Bailey Peacock-Farrell was positioned behind his goal line but believed he had kept out Joe Willock's close-range shot. The linesman flagged to award Newcastle the goal and, with no technology at the home of the League One leaders, that decision stood. Goal-line technology was in place at Premier League and Championship grounds.

Match: Leyton Orient 1-2 Manchester City

What happened? It was the moment Leyton Orient's Jamie Donley wrote his name in cup folklore - but should it have stood? Manchester City, who made a full recovery from their shock setback after Donley's shot from 50 yards put the League One side ahead, felt Nico Gonzalez was fouled by Sonny Perkins in the build-up.