Chelsea are 45 minutes away from another big win on the road in the Premier League. West Ham need to improve and will surely be a bit more aggressive in the second half. Their 5-2-3 system hasn’t worked too well against Chelsea so far and the visitors have still enjoyed plenty of the ball in promising positions out wide.

An entertaining end to the first half at the London Stadium, that, as Premier League leaders Chelsea head into the break in front. Thiago Silva’s downward header from Mason Mount’s corner gave Chelsea the lead following some poor marking from the hosts, but West Ham were given the chance to equalise when Jarrod Bowen pounced on Jorginho’s back-pass and Edouard Mendy brought down the forward with a sliding challenge. Manuel Lanzini converted from the spot but Chelsea quickly retook the lead thanks to a stunning piece of technique from Mount, who beat Lukasz Fabianski with a first-time volley from the angle shortly before the break.

45+1 mins: Chelsea looked like they had a slight opening on the stroke of half-time as Havertz tried to race around the outside of Zouma into the box. The angle closes on Havertz as Zouma slides in. Both players stay down – and Havertz looks like he’s in pain from the challenge.

WHAT A FINISH! Out of nowhere, Chelsea retake the lead! Loftus-Cheek wins the ball back as he challenges Soucek in midfield. He pings it wide to Ziyech who has time to bring it down and drift inside. It looked like the pace of Chelsea’s attack had gone, as Ziyech flighted a ball over to Mount at the back post but the England international connected with the full volley to spectacularly find the bottom corner of Fabianski’s near post. Such impressive control.

43 mins: Mendy’s first touch following the penalty is a shanked clearance into the stands. West Ham have been lifted here.

41 mins: Ziyech drifts inside the West Ham box as Chelsea look to hit back but Dawson makes a big block to deny his shot at goal.

Lanzini sends Mendy the wrong way with a composed penalty into the side-netting, and West Ham are level!

But that was such a needless penalty for Chelsea to conceded. Jorginho’s backpass was underhit and Mendy’s touch invited pressure from Bowen and Rice. Bowen was able to step across the Chelsea goalkeeper who caught the West Ham forward as he tried to slide in.

38 mins: Nightmare for Mendy as he hauls down Bowen!

35 mins: Rudiger is able to carry the ball forward and looks to curl a shot at goal, which Dawson blocks to some murmers of frustration from the West Ham fans. It’s all a bit too easy for Chelsea at the moment. Loftus-Cheek then shifts the ball along to Mount, who found himself in space, but his low drive was gathered by Fabianski.

32 mins: Chelsea again threaten down the right and West Ham are forced into two last-ditch clearances to deny Havertz from steering a shot at goal from point-blank range. Alonso then gets down the left wing and a combination of Dawson and Diop clears as Havertz stole in at the front post.

Chelsea have lifted their tempo following Thiago Silva’s breakthrough.