Welcome to football.london's live coverage of West Ham United vs Chelsea at the London Stadium.
Neither side has enjoyed the season they would have hoped but will be hoping to find some momentum to change their fortunes in the latter half of the campaign.
The Hammers come into the game having defeated Everton and earned a draw with Newcastle United in the Premier League but still sit 17th in the table. Chelsea, on the other hand, are in ninth place and 10 points away from a Champions League qualification spot having picked up a win against Crystal Palace and draws with Liverpool and Fulham.
The Blues have only won on one of their last five trips to the home of the Irons. Their last visit saw Chelsea twice give up a lead before Arthur Masuaku scored an 87th minute equaliser.
Follow all of the build up to, action from and reaction to the game with Adam Newson, Scott Trotter and Jonty Colman below:
Handball calls [1-1]
Gallagher has a strike from outside of the box that appears to hit an arm on its way through. Does not appear as though the referee is bringing play back however.
Aguerd injury
Nayef Aguerd forced off with around ten minutes to go. Injuries really totting up for West Ham.
Chance! [1-1]
Ben Chilwell gets in down the left to provide a good delivery but Havertz can't direct his near post header on goal under pressure from Ogbonna.
Soucek heads over
A cross from Bowen finds Soucek. Gets ahead of Thiago Silva to the corss but it goes just wide.
Chelsea changes [1-1]
Mount, Ziyech and Chilwell replaces Mudryk, Madueke and Cucurella.
Yellow card [1-1]
Badiashile gets it for nipping in at Antonio's heels after the forward turns him. Looked like he got the ball to me.
Changes getting ready fr Chelsea - Chilwell, Ziyech and Mount.
Another chance [1-1]
Cucurella receives the ball in the opposition box and puts a ball into a dangerous area. It bobbles around until Mudryk lops it out of play however.
Oooo [1-1]
Good ball in from Reece James from the resultant free kick but Antonio flicks it out for a corner. Nothing comes from it but Chelsea quickly find possession again.
Rice shoots wide [1-1]
Declan Rice hits one from the edge of the area. Struck it low and just wide. West Ham wasted a counter just before when Bowen's pass to Antonio went straight at Mudryk.
Chance for Chelsea
The Blues finally work their way deep into West Ham's half and James finds some quality to deliver a teasing cross into the area but the home side clear things up.
Half time: West Ham 1-1 Chelsea
It's been an opening 45 minutes at the London Stadium that has largely been controlled by Chelsea.
Joao Felix has been the most inventive player on the pitch and deservedly got on the scoresheet after a quite brilliant pass from the Premier League's most-expensive player, Enzo Fernandez.
West Ham have had opportunities to counter-punch and one of them led to an equaliser as Emerson, sold by Chelsea in the summer to the Irons, arrived at the back post to finish beyond Kepa.
Chelsea will be disappointed with the scoreline yet there were signs of progress.
West Ham ratings at half-time
Lukasz Fabianski - 7
Thilo Kehrer - 6
Angelo Ogbonna - 6
Nayef Aguerd - 6
Vladimir Coufal - 7
Lucas Paqueta - N/A
Declan Rice - 7
Emerson - 7
Jarrod Bowen - 7
Michail Antonio - 7
Said Benrahma- 6
Tomas Soucek - 6
Badiashile over [1-1]
The French defender meets a corner but can only guide his header over the crossbar.
Fabianski worked [1-1]
Felix attempts to whip a free-kick past Fabianski but the West Ham goalkeeper is in position to save.
Madueke close [1-1]
The Chelsea winger makes room to shoot and his curled effort is pushed away by Fabianski.
GOAL! 1-1!
It had to be him. West Ham are level. Coufal's cross is flicked on by Bowen and Emerson arrives late at the back post to turn it in against his former club.
Antonio goes close
Bowen gets to the byline and cross. Antonio with a clever improvised flick is saved by Kepa and he can't quite follow up. Best chance so far.
Havertz goal ruled out [0-1]
Chelsea have the ball in the net for the third time this afternoon after Havertz finishes from a Mudryk pass, but the goal is rightly ruled out for offside.
