Kepa is fouled as the ball comes in from the corner.

Solly March is on for Tariq Lamptey.

A Brighton corner now as Leandro Trossard's pace causes problems down the left.

Karen Carney
Former Chelsea midfielder on BBC Radio 5 Live

Romelu Lukaku's first touch let him down and he's had to adjust his feet and give Robert Sanchez the time to come out and close him down.

Dan Burn heads away Cesar Azpilicueta's effort as Chelsea have another corner.

Building some pressure...

Image source, Getty Images

A big chance.

Antonio Rudiger chips it over the top and finds Romelu Lukaku. He has one touch then smashes it.

Robert Sanchez is off his line quickly to close it down and does just enough to deflect it into the side-netting.

Karen Carney
Former Chelsea midfielder on BBC Radio 5 Live

Leandro Trossard is such a threat down the left. He drives into the penalty area and he crosses it on the six-yard line. All it's saying is 'please side foot it in'. Neal Maupay doesn't, he just admires it. That's what Brighton are missing - someone with that anticipation.

Adam Webster has turned into Lionel Messi.

Neal Maupay's shot is blocked by Antonio Rudiger but Brighton retain possession.

It's switched across to Alexis Mac Allister, before Adam Webster breaks, skips past three players and slides it into the middle.

It's not too far away from Leandro Trossard before Kepa dives on top of it.

Hakim Ziyech feeds in Cesar Azpilicueta down the right but his cross is straight to Robert Sanchez.

Chris Wise
BBC Radio 5 Live at the Amex

Adam Webster enjoys a goal on a big occasion. He’s now scored in the Premier League against Chelsea, Manchester City, Arsenal and Tottenham.

He’s only got five top-flight goals in his career.

Noooo, Neal Maupay can't believe it.

Tariq Lamptey hits it across the six-yard area first time and Maupay just doesn't react.

He's completely free but it hits his heel and bounces away. If he got any touch on it in the other direction, it would have caused real problems!

Leandro Trossard then teases a ball just past him a few moments later.

Dan Brooker: One win in seven....TT looking over his shoulder. Managers gone for less.

Oooft!

Mason Mount lays it off to Marcos Alonso and he smashes it first time from long range.

He catches it so sweetly but it fizzes over the bar. If that was on target...

Leandro Trossard weaves in and out of a few challenges but Chelsea have players back.

A combination of Jorginho and Cesar Azpilicueta regain possession for Chelsea, before Trossard fouls the Blues skipper.

Sho: Boom. Great header. But boy that is shocking marking. Didn't even jump, just ran round the back.

Steve in Milan: How did we go from the best to worst defence in the league?

Callum Hudson-Odoi's shot is blocked after he cuts inside off the left. The rebound falls to N'Golo Kante and he blasts it way over.

Karen Carney
Former Chelsea midfielder on BBC Radio 5 Live

Image source, Getty Images

Brighton absolutely deserve it. There is nothing the keeper could do but the marking is questionable. No-one picks Adam Webster up, the delivery is spot on but he's unmarked. Shocking defending from Chelsea.

And here come the Brighton subs.

Danny Welbeck and Pascal Gross are off.

On comes Neal Maupay and Leandro Trossard.