Mark Lawrenson
BBC football expert on BBC One

"I would think before the game that the Manchester City players may have had information on the Cardiff wall that they all jump together. So clever, so simple."

Nice play from Man City. Leroy Sane and Bernardo Silva link up well down the left and Ilkay Gundogan finds the ball in space in the box.

He has time to fire a shot at Etheridge and receives it back from the rebound before he's crunched into.

That tackle has hurt him and now Sergio Aguero is warming up...

Image source, Reuters

Guy Mowbray
Match of the Day commentator on BBC One

Mendez-Laing has not scored sine August. Neil Warnock thinks he has diagnosed the reason for his form. He's an asthmatic and has been on the wrong medication lately.

Now Manchester City have the ball and they take it up the right wing with Kevin de Bruyne. He has time to lift his head up, pick out a player and deliver the ball to Bernardo Silva - who had made a nice run to the near post.

He tries to flick it on but it lacks pace and it's a comfortable save for Neil Etheridge.

Image source, Reuters

Mark Poddington: Neil Warnock. Now there's a manager who could light up the Emirates when Wenger goes at last.

Interesting - that would be quite some change of direction.

Cardiff have started brightly! They burst forward with pace and reach the Man City box but can't quite get a shot away.

Mark Lawrenson
BBC football expert on BBC One

I've watched Cardiff quite a bit. If they get a chance to tackle, they will tackle. Expect lots of perspiration, application, dedication.

Guy Mowbray
Match of the Day commentator

Cardiff have only reached round five in one of the last seven sesaons. Manchester City have been there in four of those years.

Rob: Plenty of goals in this game - predominantly from the English team!

Lewis: Tenner says Kompany goes off injured before half time.

Dafydd Pritchard
BBC Sport Wales at the Cardiff City Stadium

There doesn't tend to be an atmosphere like this at the Cardiff City Stadium unless Wales are playing.

Today's game is a sell-out, so a capacity crowd of 33,280 would be a new record for Cardiff games at this ground, surpassing the 28,680 against Derby in 2016.

Image source, Reuters

And we're off!

The battle for a place in the fifth round of the FA Cup is underway.

Image source, Reuters

A minute's applause for Jimmy Armfield and Patrick Cryne now.

Image source, Reuters

Danny Gabbidon
Former Wales defender on BBC One

It's a one-off game, 11 against 11, a fantastic atmosphere and a manger who is very experienced. They must be disciplined defensively, every player must be concentrating but they also have to effect the game when they get the ball as well - something similar to what Newport County did yesterday, get an early goal and get the crowd behind the team.

Manchester City manager Pep Guardiola: "They are third in the Championship. We are playing away. It will be tough.

"We know exactly how complicated the game will be. Last season against Huddersfield, we needed a replay. It's a team on top form. Tall team, set pieces, aggressive one against one.

"We have to defend high because if we defend the box they are so strong."

Image source, Getty Images

Guy Mowbray
Match of the Day commentator

"For all their obvious differences, Neil Warnock and Pep Guardiola have one inescapable thing in common - they both get the absolute best from their squad of players.

"That's clear to everyone with Manchester City, but the majority watching won't be as familiar with Cardiff.

"Third in the Championship, they're responding superbly to the 'Warnock way', which on the surface seems a world away from Guardiola's.

"The Bluebirds' boss will love everything about this tie, with his excitement apparent as soon as Mansfield had been beaten in a third-round replay attended by Guardiola.

"There'll be long balls, battles a plenty and a full Cardiff City Stadium.

"Warnock's right. Aside from the game itself, Cardiff can't lose."

- Cardiff last met Manchester City in the FA Cup in January 1994, when they knocked out their top-flight opponents as a third-tier side.

- The Bluebirds won their first ever Premier League game in this fixture back in 2013, with two goals from Frazier Campbell.

- This will be the 50th meeting between these two sides. Manchester City lead by 20 wins to Cardiff's nine, with 20 draws.

Image source, Getty Images

Alan Shearer
Former Newcastle striker on BBC One

Neil Warnock will love this atmosphere here today. He'll have been on at his players about it all week, getting them pumped up, and they'll be more than ready for this today.

Max Bevis: Warnock vs Pep. The one we have all been waiting for.

Samson: Buzzing for this match it should be an absolute corker for the impartial.

Mark Lawrenson
BBC football expert on Final Score

Manchester City will win this tie but I think Cardiff will give them a real game because they are strong physically and they will get into Pep Guardiola's players.

The Bluebirds are a typical Neil Warnock side and they are not going to lie down.

Prediction: 0-2

You can check out Lawro's full predictions here as he takes on Copa90 presenters Poet and Vuj.