Matt Jarvis
Former Wolves & Norwich winger on BBC Radio 5 Live

Image source, Reuters

Yankuba Minteh has been the attacking threat that Brighton need. He has been great.

You might not always notice it but it is the hard work and the doubling up he is doing with this right-back to help him with Jadon Sancho, Marc Cucurella and even Christopher Nkunku. He does so well on that defensive work and he has got bundles of energy.

Alan Shearer
Former England striker on BBC One

I think Birmingham can be really proud with the way they went about the game.

They came up against a strong team. It was a great game of football.

Newcastle United

Newcastle striker Callum Wilson, speaking to BBC One: “We didn’t give ourselves the best start. It was an easy goal to concede and we gave ourselves an uphill battle. It woke us up a little bit. We had to get going and show our qualities."

On his fitness: “I’ve worked hard to get myself in a position to start games again. I didn’t want to come back too soon. I’m just going to try and get as many games between now and the end of the season. It’s been frustrating to say the least, but hopefully I’m on the other side of it now.”

On Joe Willock: “I’m delighted for Joe. He’s a big character in the dressing room. We all support him and are standing by him. He’s taken his opportunity today.”

We are into our 10th FA Cup game of the day so why not remind yourself of some of the best action from it? Here, we've attached goals and highlights to refresh your memories.

Watch out for Tomoki Iwata's screamer for Birmingham.

Matt Jarvis
Former Wolves & Norwich winger on BBC Radio 5 Live

Chelsea were gifted the first goal and then they started to settle down and feel more comfortable in the way they play.

Fair play to Brighton. it must have been difficult for them to put themselves into this position after their last two matches. They have dominated after the equaliser and looked the more likely to score again.

But Brighton need to be careful because Chelsea have the players and the pace to hurt them on the break.

Image source, Reuters

It was a fine start to the match with two goals inside the opening 12 minutes. Chelsea took the lead when Bart Verbruggen diverted Cole Palmer's attempt into his own goal, before Georginio Rutter headed in an equaliser.

There hasn't been too much excitement since then, with it level at the break.

Image source, Getty Images

No changes yet so Brighton pair Lewis Dunk and Yankuba Minteh, as well as Chelsea's Pedro Neto - who all needed medical treatment not too long ago - are all still out there, trying to battle on.

Pedro Neto has come back on for Chelsea and is trying to run off any injury, but he's not moving too cleanly.

Now it's Brighton's turn to call on the physios, with both Yankuba Minteh and Lewis Dunk needing treatment.

Matt Jarvis
Former Wolves & Norwich winger on BBC Radio 5 Live

This is not good for Chelsea because Pedro Neto is a real livewire.

Especially in this formation when Christopher Nkunku has to come short, you need someone to run in behind and Neto is that player. He is so direct and dynamic.

Chelsea's Pedro Neto is in pain here and may have to go off. There is no challenge on him, but he instantly sticks up an arm as he's gone over on his left ankle.

Matt Jarvis
Former Wolves & Norwich winger on BBC Radio 5 Live

There's a lot of spice in the game, tackles flying in, goals. You can see both teams are desperate to win this game.

A chance for Chelsea. Christopher Nkunku looks to be through on goal but, under pressure, instead of shooting he flicks the ball to his right and Cole Palmer tries to loop a header under the crossbar but gets too much on it and it goes over the top.

Matt Jarvis
Former Wolves & Norwich winger on BBC Radio 5 Live

Brighton are starting to dominate possession here, they're starting to probe nicely. It's down the right hand-side with Minteh he's getting the better of Cucurella. He's finding a lot of space.

Chelsea aren't able to keep hold of the ball, they can't move it through the lines like they did in the opening 10 minutes.

Image source, Getty Images

It's getting a bit feisty. Brighton defender Joel Veltman is the third man in the book inside the opening half hour, for bringing down Marc Cucurella and then not helping his cause by trying to forcefully lift the Chelsea man back to his feet.

Chelsea have progressed from 25 of their last 27 FA Cup fourth round ties, with the exceptions in this run coming against Everton (2010-11) and Bradford City (2014-15).

Work to be done to get into round five tonight. Remember, it has to be sorted out tonight and we've already had a couple of ties go to penalties.

Matt Jarvis
Former Wolves & Norwich winger on BBC Radio 5 Live

Brighton need to be careful. When they get forward they have a lot of players going into Chelea's box, but Chelsea have such pace on the counter. That's an area they need to make sure they are comfortable and have players in the right position.

It's starting to liven up here, a couple of good challenges going in.