Full-time: West Ham 1-0 Chelsea
- David Moyes secures a first win as West Ham manager at the fifth attempt after his much-improved side emerge victorious from feisty lunchtime London derby
- Marko Arnautovic scores his first goal for the club after six minutes following a lovely one-two with Manuel Lanzini on the edge of the penalty area
- Adrian keeps a clean sheet after retaining his starting berth ahead of Joe Hart
- The Hammers remain in the relegation zone, but draw level on points with 17th-place West Brom before Alan Pardew's side face rock-bottom Swansea later today
- Chelsea's first defeat in eight league matches leaves them third, 11 points off the top before Sunday's Manchester derby at Old Trafford
- Five of Antonio Conte's nine league losses in English football have come against rivals from the capital
- 15.00 GMT - Tottenham vs Stoke
Little time to dwell on that result at IBTimes UK towers as we move straight onto Saturday's 15.00 GMT kick-offs, a five-strong slate headlined by Tottenham's clash with Stoke at Wembley.
We hope you can stay with us for that one.
West Ham 1-0 Chelsea
Fabregas launches a shot into the stands after Kante's cross for Morata is headed away.
Adrian then claims a hopeful delivery from Azpilicueta and Zabaleta hooks the ball clear.
FIVE minutes of added time signalled at the end of this second half. Can Chelsea find a last-gasp leveller?
Masuaku carded for time wasting at a throw-in. West Ham's six yellows will incur a fine from the Premier League.
Reid steps up and Morata is caught offside while looking to collect Azpilicueta's lofted pass. Referee Taylor declines to go back and punish two earlier fouls from Noble and Obiang.
On the touchline, West Ham coach Stuart Pearce is ordered back into his technical area after hoofing the ball into the crowd.
Kante and Morata combine to set up Hazard, who blasts his shot over the crossbar. Time is running out for Chelsea.
Masuaku drops too deep and the flag stays down as Morata collects Kante's deflected pass and shoots into the side netting.
A massive chance for Chelsea spurned by their top scorer.
Antonio has put it one hell of a shift for West Ham this afternoon and lies on the ground exhausted and no doubt suffering from cramp. He eventually trudges off to be replaced by Andre Ayew.
Ogbonna concedes the corner and Morata is penalised for a shoulder on Adrian. Under 15 minutes - plus stoppage time - now remain for Chelsea to find an equaliser.
Pedro Obiang wipes out Kante and West Ham's tally of yellows is up to five. They have certainly taken a physical approach to this London derby.
Christensen tries to turn home Fabregas' free-kick but Reid is on hand to make a superb block.
Moyes' first change sees potential match-winner Arnautovic make way for Diafra Sakho.
Two yellow cards in quick succession for West Ham. Reid brings down Morata in the middle of the pitch and Cresswell kicks the back of Willian as the Brazilian looks to enter the penalty area from the right.
Four home players are now in the book, with Adrian and Arnautovic having previously been cautioned.
Zappacosta is the man to make way for Willian as Conte uses all three of his substitutions inside 65 minutes. Chelsea very attacking now...
Alert goalkeeping from Adrian, who smothers the loose ball after Morata looks to pounce on Azpilicueta's deflected shot.
West Ham, not merely content to defend their slender lead, come forward again but Arnautovic cannot find Antonio. Masuaku wins a corner off Moses, but the delivery is too deep.
Zappacosta and Zabaleta engage in a fierce battle for possession in the far corner. It looks like Willian is going to be introduced with Chelsea's third and final change.
Zappacosta steps inside Zabaleta and onto his right foot before curling a shot narrowly wide of Adrian's far post.
West Ham's shouts for a penalty go unheeded after Arnautovic flicks the ball onto the hand of Christensen. Referee Taylor had a long think about that one.
Conte turns to his bench for the second time already as Moses replaces Alonso.
Arnautovic goes one-on-one with Courtois on the break but the flag is belatedly raised for offside after Antonio delays his pass for a fraction too long.
Fabregas then cannot make a clean contact with Zappacosta's latest cross and Ogbonna clears.
Hazard goes to work for Chelsea and Zabaleta ensures that Zappacosta's floated cross does not reach Alonso. Pedro volleys the loose ball well wide.
The second half is now underway. One change from Conte, who sends on Pedro in place of the consistently underwhelming Bakayoko.
Chelsea simply need more in the final third to try and break down this surprisingly stubborn West Ham backline, who have shipped more goals than any other team in 2017-18.
A very positive opening 45 minutes from West Ham, who lead thanks to Arnautovic's first goal in claret and blue. They have defended stoically throughout bouts of Chelsea pressure and look dangerous on the break with Antonio able to utilise his pace.
Moyes will be hoping for more of the same after the break as he looks to claim a major scalp and collect his maiden win in the job.
The visitors, by contrast, have been sloppy and largely ineffective. A half-time blast of the hairdryer from Conte surely awaits.
West Ham 1-0 Chelsea
A number of 'oles' from the home crowd as West Ham continue to frustrate their below-par opponents with some quick passing.
Lanzini's cross is cut out by Alonso as the whistle blows for the end of the first half.