Great noise from both sets of fans and a really healthy following from Brighton. Sloppy start by Spurs as they give away possession cheaply which gifts Adam Lallana an early chance.

The all-Premier League tie is under way. Who will go through to the fifth round?

A reminder of the team news...

It’s five changes for Tottenham from the side that lost 2-0 to Chelsea 13 days ago.

Emerson Royal, Cristian Romero, Ben Davies, Sergio Reguilon and Lucas Moura all come in.

January signings Rodrigo Bentancur and Dejan Kulusevski are both on the bench.

Tottenham XI: Lloris, Royal, Romero, Sanchez, Davies, Reguilon, Winks, Hojberg, Lucas, Son, Kane.

Brighton captain Lewis Dunk starts for the first time since 1 December after recovering from a knee injury. He is one of five changes from the team that drew 1-1 with Leicester last time out on January 23.

Tariq Lamptey, Yves Bissouma, Adam Lallana and Solly March are also all given starts after missing out.

Brighton XI: Sanchez, Lamptey, Cucurella, Webster, Dunk, Bissouma, Maupay, Gross, Lallana, Moder, March.

Harry Kane is in the tunnel wearing his game-face. Here come the teams. A terrific reception as the players walk out.

Spurs were involved in one of the best FA Cup ties I have seen for ages when they lost 5-4 at Everton in the fifth round last season.

More of the same tonight, please.

Brighton & Hove Albion

Brighton's record in London this season:

Away v Brentford 1-0 WON

Away v Crystal Palace 1-1 DRAW

Away v West Ham 1-1 DRAW

Away v Chelsea 1-1 DRAW

Image source, Rex Features

Graham Potter thinks Brighton should be able to dream of winning the FA Cup.

The Seagulls boss is no stranger to lifting domestic trophies, having won the Swedish Cup with Ostersunds in 2017.

"Winning a trophy is massive, it's huge," adds Potter. "Ultimately that's what we are all trying to do - we are all trying to win.

"Of course, silverware and trophies are important and they are more special, especially from a memories perspective. I think when you look back on your career and you have a trophy it tells you something about the journey you have been on.

"I enjoyed my trophy-winning experience in Sweden, it was special and it meant a lot to me and it meant a lot to the team and the club. Reflecting back it was a special time."

Image source, Rex Features

Antonio Conte has got his hands on the FA Cup in the past.

He masterminded Chelsea's 2018 triumph and said after the 1-0 win over Manchester United at Wembley: "In a difficult season like this, I showed I'm a serial winner. This is the truth. To win in this way this season gives me more satisfaction than my wins in the past."

The question is: can he deliver a trophy at Spurs?

Surely Tottenham's best signing for some time is Antonio Conte?

Image source, Getty Images

Spurs brought in two new signings on transfer deadline day - Rodrigo Bentancur and Dejan Kulusevski - but not all Tottenham fans are happy.

A group of around 50 supporters protested against the club's ownership and board at the start of the week.

They say that there is, and has been, a lack of investment in the playing staff, no accountability and a focus on the corporate side over the football side of Tottenham.

Brighton & Hove Albion

Image source, Getty Images

Brighton will fancy their chances of making the fifth round. They are unbeaten in 2022.

However, they have not won on Tottenham soil since 1981. That's a long time.

Tottenham Hotspur

Image source, Reuters

Around 20 minutes before kick-off at Tottenham.

Will Spurs begin life after Dele Alli with a win?

They could certainly do with a new trophy to go with their sparkling new stadium.

They have won the FA Cup eight times but their last success in the competition was...1991.

FA Cup

In case you are wondering, the draw for the fifth round of the FA Cup will take place on Sunday at about 11:40 GMT, before Liverpool's tie with Cardiff, which kicks off at 12:00.

It will be live on ITV1 and you can also follow the draw on the BBC Sport website.

Two-time Manchester United FA Cup winner Andy Cole will conduct the draw.

There are another three FA Cup ties to come on Sunday. Cardiff fans planning to make the long journey to Liverpool, it's time for bed!

12:00 GMT: Liverpool v Cardiff City

16:00 GMT: Nottingham Forest v Leicester City

18:30 GMT: AFC Bournemouth v Boreham Wood

A good time to remind ourselves who is through to the fifth round so far:

Middlesbrough

Chelsea

West Ham United

Crystal Palace

Everton

Huddersfield Town

Manchester City

Peterborough United

Southampton

Stoke City

Norwich City

Luton Town

Thanks, Gaz.

Upsets have been in short supply in the fourth round so far.

Middlesbrough's win at Manchester United on Friday is the big shock of the round so far.

"Was it really an upset?" asks former Tottenham and Republic of Ireland forward Robbie Keane on ITV4.

There's one more FA Cup time to come tonight as Tottenham host Brighton.

Neil Johnston is in the chair to guide you through the action. All yours, Neil!

David James
Former England goalkeeper on BBC Red Button

Nathan Jones will be delighted with that win.

Mark Bonner will wonder if his side could have made more of their possession.

Image source, Getty Images

All over and Cambridge Utd's FA Cup run comes to an end while Luton continue theirs.

A clinical display sees the Championship side into the last 16.

"Wemberleee, Wemberleee!" sing the Luton fans.

It might be a bit too early to be booking that hotel in London but the Hatters are in the hat for the fifth round for the first time since 2013.

They are in form and have momentum, so who knows how far they could go.