- Antonio Conte secures three points in first game in charge as Chelsea boss.
- Diego Costa scores late winner after James Collins wiped out Eden Hazard's opener.
Antonio Conte marks his first Premier League game with three points. Questions will be asked how Diego Costa and N'Golo Kante stayed on the pitch after avoiding second bookings, but Chelsea get their season off and running with a deserved win.
Full-time: Chelsea 2-1 West Ham
A bit of a melee breaks out in the Chelsea box with West Ham players queuing up to have a crack on goal, but Courtois makes an important block. The Hammers recycle the ball and force it out wide the cross that comes back in is comfortably collected by the Chelsea goalkeeper.
Four minutes of time added on here and Payet has just miss hit an effort inside the box, making the save easy for Courtois.
Costa nets what will surely be the game's winner! Batshuayi nods the ball onto Costa who has time to look up and assess his options with James Collins standing off him. He has Pedro free off to his right but instead opts to shoot from just outside the box, arrowing one into the far corner, sparking some fairly mental celebrations from Antonio Conte.
Goal! Chelsea 2-1 West Ham (Diego Costa, 88)
I owe Victor Moses an apology, his first contribution is a beauty of a cross in from the left that looks destined for Batshuayi in the box. Just as he pulls back to shoot, Reid nods away, but only as far as Pedro who lashes one across goal towards the far corner. It veers agonisingly wide however and Chelsea pass up another chance.
And here is Chelsea's final change, Hazard off for... Victor Moses? That's an odd one. In any case, Cesc Fabregas won't be making an appearance this evening.
Another change for Chelsea; Oscar comes off and Michy Batshuayi comes on for his Blues debut.
Kante loses a shoulder-to-shoulder with Payet and clips his fellow Frenchman as he bursts away from him. The Chelsea midfielder was booked inside three minutes this evening, but luckily for him, Anthony Taylor keeps his cards in his pocket.
Just under 10 minutes left in this contest.
Here's Chelsea's first change of the game; Willian is off to be replaced by Pedro. Cesc Fabregas remains on the bench.
What a finish from James Collins! West Ham scream for a handball after Payet's corner causes havoc in the box, but the big centre half keeps his cool and rifles a superb half volley into the far corner!
Goal! Chelsea 1-1 West Ham (James Collins, 76)
Payet's effort takes a nick off the wall and bounces out for a corner. Chelsea breathe a sigh of relief.
Carroll bravely challenges for a high ball on the edge of the box and is caught by the boot of Azpilicueta. West Ham have a free kick bang in the middle of Payet territory.
Adrian can't believe Costa wasn't shown a second yellow card after this. After seeing the replay, neither can we.
Oscar's cute effort hits the West Ham wall and it is cleared.
Chelsea have a great chance to double their lead here; they have another free kick about 25 yards out. Oscar and Willian stand over it.
Err, looking at the replays of that Costa challenge on Adrian, he definitely should have been shown a second yellow. It was a wild one.
His delivery is a decent one but Ivanovic gets to it first and nuts clear.
Noble now wins a free kick down the other end out on the left flank. Payet has his first chance to make in impact.
A back pass reaches Adrian and the goalkeeper tries to be a bit too fancy, inviting Costa to slide in and try to win the ball. He's caught by Costa's late challenge, but it did look like a genuine attempt to win the ball. The Chelsea striker is already booked, but no further action is taken.
West Ham need to change things quickly here and Bilic has looked towards Dimitri Payet to do so. The France international is on to replace Nordtveit.