Aaron Cresswell's corner is plucked out of the London sky by Robert Sanchez.

This is much better from West Ham. Aaron Cresswell's cross is met but Tomas Soucek but his shot is deflected behind for another corner.

Rob: How can you be that bad in the first half and not make changes at half time? Absolutely baffling

Edouard Mendy is getting plenty of stick from the Kop every time he touches the ball. The home fans in that stand behind the goal are going to do everything they can to try and shake his confidence further.

Alistair Magowan
BBC Sport at Elland Road

Think Chelsea had a bad half? I've only just managed to get on the Wifi!

This already looks like it will be a long half for Leeds. But Chelsea will have to work hard to ensure they don't lose hope as nothing much has gone their way so far this game. Even if most of it has been self-inflicted.

West Ham are getting closer now. The corner bounces for Aaron Cresswell in the box and he rifles a half-volley off a Brighton player.

West Ham are pushing for an equaliser now and the noise levels go up as Declan Rice's shot hits Pascal Gross and goes behind for a corner.

Chelsea continue to forge chances.

The ball breaks for Conor Gallagher via a deflection and he has just Illan Meslier to beat, but the Leeds keeper diverts the ball over the bar superbly.

The flag then goes up, but VAR would have had a good old look at it.

Chelsea are going to get chances, that's for sure.

They break after a home corner and for a moment it is two on two. Raheem Sterling's ball finds Mason Mount but he dwells a fraction and his shot is then blocked by Jack Harrison, who had charged the length of the field to get back.

Pascal Gross almost finds Danny Welbeck with a through ball but West Ham newbie Thilo Kehrer does well to read the ball and win it.

Marc Cucurella has the first chance of the half, but after shifting the ball on to his right foot he slices his shot well wide.

Tyler Adams was on the ground during the whole attack, with Leeds asking that the Blues put the ball out.

West Ham win an early free-kick on the left wing. Aaron Cresswell crosses and it bobbles round a bit before Said Benrahma is crowded out.

Mark: Chelsea are getting bullied by Leeds at the moment. The team looks nervous and rattled and Tuchel’s body language doesn’t exactly enhance the cool.

So no changes from Thomas Tuchel. He clearly saw enough from his side to believe the lads out there can get back into this.

Two scorelines that lend themselves to exciting second-halves.

West Ham and Chelsea have to come out swinging.

We're back under way...

Image source, Getty Images

Pat Nevin
Former Scotland winger on BBC Radio 5 Live

That first 45 mins was brilliant by Jesse Marsch, the players did well and seemed to be everywhere making no space for Chelsea. Any time Chelsea got the ball they were closed down by Leeds. Panic stations for Chelsea, Thiago Silva noticed it before the first goal, screaming to get his players closer together but didn't move it quick enough. By the time they adapted they were five minutes too late and two goals down.

Chelsea trail at half time in a Premier League game for the first time since their final match of the 2020-21 season against Aston Villa (a 2-1 loss).

They had gone 40 successive matches without trailing at the break before today.

Brighton are unbeaten in their last 15 Premier League matches in which they scored the opening goal, a run that started with a 1-1 draw at home to West Ham on 15 May 2021.