West Ham 0-1 Chelsea
Timo Werner scored his first goal since February as Chelsea secured a vital win in the race for the top four places at West Ham.
The German ended his drought in the 43rd minute when, having held off Angelo Ogbonna to turn well in midfield, he met Ben Chilwell’s low centre near the penalty spot to slot in.
The majority of the first half had been tight as Chelsea struggled to break down the organised West Ham defence, while searching for a first win at the London Stadium since 2017.
Cesar Azpilicueta survived a VAR check for handball when he deflected a ball narrowly wide of his own goal as West Ham began to pressure, but Werner chose a key moment to score just before the half.
His finishing struggles returned in the 55th minute when Lukasz Fabianski dived to keep out a long-range Mason Mount shot, and Werner somehow screwed the rebound wide.
West Ham were buoyed by the miss and the in-form Jesse Lingard nearly equalised five minutes later, looping a half-volley just wide.
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But the pressure was reduced when Fabian Balbuena was a shown an 81st minute red card after a lengthy VAR review, to the fury of David Moyes.
The Paraguayan caught Chilwell high with his studs on the follow-through of his own clearance but was unlucky as it surely had no intent.
Tammy Abraham headed over from two yards in injury time, but Chelsea held on to go three points clear in fourth, with West Ham fifth, a point ahead of Liverpool who were held by Newcastle earlier.