Noni Madueke (On for Gallagher 75’) 6: Almost made score 1-1 when his deflected shot forced good save out of Areola. EPA
WETS HAM RATINGS: Alphonse Areola 8: Rescued by VAR offside call when keeper recklessly took down Jackson in 10th minute. Good penalty save from Fernandez just before half-time and another fine stop on deflected Madueke shot late on. Getty
Emerson 5: Couldn’t live with Sterling’s pace, particularly in first half, and was booked for really poor challenge on England attacker that looked even worse on replays. AFP
Kurt Zouma 7: Hammers captain, up against his former club, found the pace and trickery of Jackson a real handful at times. Sent clearance straight to Chukwuemeka ahead of his leveller for Chelsea. Enjoyed a much improved second half. EPA
Nayef Aguerd 5: Headed West Ham into early lead from Ward-Prowse corner and then picked up game’s first booking for pulling back Sterling. Rightly sent-off in second half for late challenge on Jackson with nearly 25 minutes still to go. PA
Vladimir Coufal 6: Mixed game for Czech down right. Caught out by some Chilwell runs in first half and the same with Mudryk in second but stuck to task and never let head go down. AFP
Tomas Soucek 5: Left with head in hands after being skinned by the quick feet of Chukwuemeka ahead of Chelsea’s opener, then his clumsy challenge on Sterling led to the penalty which Fernandez missed. EPA
James Ward-Prowse 7: New boy went straight into the starting XI and his second corner of game set up Aguerd’s headed opener after his first moments earlie had caused chaos in Chelsea box. Supplied pass for Antonio before big striker made it 2-1. EPA
Lucas Paqueta 7: Brazilian was booked for dissent but then almost put West Ham 2-1 up in first half when his low shot on the stretch clipped outside of post. Embarrassing fall to floor after push in chest by Gallagher in second half. Confidently stepped up to score late penalty. Reuters
Said Benrahma 6: Algerian would have been relieved to see linesman’s flag go up when he fired chance wide after being put through early in second half. Scuffed another shot wide of target just after the hour mark. Sacrificed for defender after Aguerd’s red card. Getty
Jarrod Bowen 6: Scored cracking goal against Bournemouth last weekend but offered little threat in first half, which was more to do with poor service than the fault of Bowen. Struck shot from distance straight at keeper after linking up well with Fornals late in game. Reuters
Michail Antonio 8: Totally isolated in first half when he only touched the ball only five times. His stunning finish in the 53rd minute came out of nowhere as the supply line to him had been so poor. Held ball up well when passes did actually reach him and received standing ovation when substituted late on. Getty
SUBS: Angelo Ogbonna (On for Benrahma 70’) 7: Brought on to shore up defence after team went down to 10 men and did exactly what was required. Getty
Pablo Fornals (On for Antonio 78’) N/A. Lively cameo from Spaniard. PA
Edson Alvarez (On for Ward-Prowse 81’) N/A. Debut for new signing. PA
CHELSEA RATINGS: Robert Sanchez 6: No chance with Aguerd goal, as West Ham defender had been given free header, or Antonio’s brilliant finish for second and sent wrong way by Paqueta penalty for third. EPA
Axel Disasi 6: Scored debut goal last week but no such joy this week as he picked up first-half booking here for clumsy foul on Antonio and saw Antonio’s finish fly through his legs for Hammers’ second goal. AFP
Levi Colwill 7: Certainly not short of confidence going forward and he regularly found himself in attacking positions, firing one shot wide of target in the second half. Sound defensively as well until being brushed off by Antonio ahead of striker’s superb finish. Getty
Thiago Silva 8: Immaculate against Liverpool last week and impressive again here and must be wondering how he finished on the losing side. Helped team barely give Antonio a kick in the first half only for striker to thump home wonder goal in second. Getty
Malo Gusto 6: Made his debut in pace of injured captain Reece James, and helped cause West Ham problems down the right in opening half and little problems against a West Ham attack that enjoyed little possession. Kept Benrahma’s influence to a minimum. Getty
Ben Chilwell 6: Captain’s inch-perfect cross picked out Jackson for early chance but striker headed over. Should have scored in first-half stoppage time but could only hit shot straight at defender after fine work from Sterling. Hooked after an hour. EPA
Lesley Chukwuemeka 8: Teenager scored first senior goal of his career when he left Soucek for dead before curling home finish. Booked for foul on Emerson. But picked up knock just before break and had to be helped off the pitch by Chelsea’s medical staff with game coming to a cruel end. Reuters
Conor Gallagher 6: Weak defending allowed Aguerd free header for Hammers’ early goal. Struck swerving shot from edge of box parried away by keeper. Usual tireless running in Chelsea's engine room. Getty
Enzo Fernandez 7: Argentine starting to look the part for Chelsea as helped side dominate possession. Superb through ball put Jackson clear but striker had been caught narrowly offside. Missed a penalty which was hit at good height for keeper to save. Getty
Raheem Sterling 8: His pace and driving runs saw him rip through West Ham’s defence at will in opening 45 minutes, and earned Chelsea a penalty when one of the runs resulted in him being chopped down by Soucek. AFP
Nicolas Jackson 7: Thought he had won Chelsea early penalty but had been caught offside before Areola took him down. Headed good opportunity over bar not long after. Young striker looks a handful but needs a goal. AFP
SUBS: Mykhailo Mudryk (On for Chukwuemeka 46’) 5: Ukrainian made a few darting runs forward but miscued volley when presented with great chance late on. Has yet to score since moving to club and the £88m tag is still a long, long way off being justified. Getty
Moises Caicedo (On for Chilwell 60’) 4: Big-money buy from Brighton came on for his debut and volleyed chance high and wide from outside box moments after coming on. Awful challenge on Emerson gave away late penalty. Getty
Noni Madueke (On for Gallagher 75’) 6: Almost made score 1-1 when his deflected shot forced good save out of Areola. EPA
WETS HAM RATINGS: Alphonse Areola 8: Rescued by VAR offside call when keeper recklessly took down Jackson in 10th minute. Good penalty save from Fernandez just before half-time and another fine stop on deflected Madueke shot late on. Getty
Emerson 5: Couldn’t live with Sterling’s pace, particularly in first half, and was booked for really poor challenge on England attacker that looked even worse on replays. AFP
Kurt Zouma 7: Hammers captain, up against his former club, found the pace and trickery of Jackson a real handful at times. Sent clearance straight to Chukwuemeka ahead of his leveller for Chelsea. Enjoyed a much improved second half. EPA
Nayef Aguerd 5: Headed West Ham into early lead from Ward-Prowse corner and then picked up game’s first booking for pulling back Sterling. Rightly sent-off in second half for late challenge on Jackson with nearly 25 minutes still to go. PA
Vladimir Coufal 6: Mixed game for Czech down right. Caught out by some Chilwell runs in first half and the same with Mudryk in second but stuck to task and never let head go down. AFP
Tomas Soucek 5: Left with head in hands after being skinned by the quick feet of Chukwuemeka ahead of Chelsea’s opener, then his clumsy challenge on Sterling led to the penalty which Fernandez missed. EPA
James Ward-Prowse 7: New boy went straight into the starting XI and his second corner of game set up Aguerd’s headed opener after his first moments earlie had caused chaos in Chelsea box. Supplied pass for Antonio before big striker made it 2-1. EPA
Lucas Paqueta 7: Brazilian was booked for dissent but then almost put West Ham 2-1 up in first half when his low shot on the stretch clipped outside of post. Embarrassing fall to floor after push in chest by Gallagher in second half. Confidently stepped up to score late penalty. Reuters
Said Benrahma 6: Algerian would have been relieved to see linesman’s flag go up when he fired chance wide after being put through early in second half. Scuffed another shot wide of target just after the hour mark. Sacrificed for defender after Aguerd’s red card. Getty
Jarrod Bowen 6: Scored cracking goal against Bournemouth last weekend but offered little threat in first half, which was more to do with poor service than the fault of Bowen. Struck shot from distance straight at keeper after linking up well with Fornals late in game. Reuters
Michail Antonio 8: Totally isolated in first half when he only touched the ball only five times. His stunning finish in the 53rd minute came out of nowhere as the supply line to him had been so poor. Held ball up well when passes did actually reach him and received standing ovation when substituted late on. Getty
SUBS: Angelo Ogbonna (On for Benrahma 70’) 7: Brought on to shore up defence after team went down to 10 men and did exactly what was required. Getty
Pablo Fornals (On for Antonio 78’) N/A. Lively cameo from Spaniard. PA
Edson Alvarez (On for Ward-Prowse 81’) N/A. Debut for new signing. PA
CHELSEA RATINGS: Robert Sanchez 6: No chance with Aguerd goal, as West Ham defender had been given free header, or Antonio’s brilliant finish for second and sent wrong way by Paqueta penalty for third. EPA
Axel Disasi 6: Scored debut goal last week but no such joy this week as he picked up first-half booking here for clumsy foul on Antonio and saw Antonio’s finish fly through his legs for Hammers’ second goal. AFP
Levi Colwill 7: Certainly not short of confidence going forward and he regularly found himself in attacking positions, firing one shot wide of target in the second half. Sound defensively as well until being brushed off by Antonio ahead of striker’s superb finish. Getty
Thiago Silva 8: Immaculate against Liverpool last week and impressive again here and must be wondering how he finished on the losing side. Helped team barely give Antonio a kick in the first half only for striker to thump home wonder goal in second. Getty
Malo Gusto 6: Made his debut in pace of injured captain Reece James, and helped cause West Ham problems down the right in opening half and little problems against a West Ham attack that enjoyed little possession. Kept Benrahma’s influence to a minimum. Getty
Ben Chilwell 6: Captain’s inch-perfect cross picked out Jackson for early chance but striker headed over. Should have scored in first-half stoppage time but could only hit shot straight at defender after fine work from Sterling. Hooked after an hour. EPA
Lesley Chukwuemeka 8: Teenager scored first senior goal of his career when he left Soucek for dead before curling home finish. Booked for foul on Emerson. But picked up knock just before break and had to be helped off the pitch by Chelsea’s medical staff with game coming to a cruel end. Reuters
Conor Gallagher 6: Weak defending allowed Aguerd free header for Hammers’ early goal. Struck swerving shot from edge of box parried away by keeper. Usual tireless running in Chelsea's engine room. Getty
Enzo Fernandez 7: Argentine starting to look the part for Chelsea as helped side dominate possession. Superb through ball put Jackson clear but striker had been caught narrowly offside. Missed a penalty which was hit at good height for keeper to save. Getty
Raheem Sterling 8: His pace and driving runs saw him rip through West Ham’s defence at will in opening 45 minutes, and earned Chelsea a penalty when one of the runs resulted in him being chopped down by Soucek. AFP
Nicolas Jackson 7: Thought he had won Chelsea early penalty but had been caught offside before Areola took him down. Headed good opportunity over bar not long after. Young striker looks a handful but needs a goal. AFP
SUBS: Mykhailo Mudryk (On for Chukwuemeka 46’) 5: Ukrainian made a few darting runs forward but miscued volley when presented with great chance late on. Has yet to score since moving to club and the £88m tag is still a long, long way off being justified. Getty
Moises Caicedo (On for Chilwell 60’) 4: Big-money buy from Brighton came on for his debut and volleyed chance high and wide from outside box moments after coming on. Awful challenge on Emerson gave away late penalty. Getty
Noni Madueke (On for Gallagher 75’) 6: Almost made score 1-1 when his deflected shot forced good save out of Areola. EPA