Graham Potter felt his sacking as Chelsea head coach, after just seven months in charge, was unfair and he left Stamford Bridge once again with a burning sense of injustice.

He almost took revenge on his former employers, with Jarrod Bowen giving West Ham a one-goal lead by the break. But Pedro Neto equalised in the 64th minute, before an Aaron Wan-Bissaka own goal decided the contest in favour of the hosts.

In the end, West Ham were undone by two touches of ill fortune. Marc Cucurella had been offside in the build-up to Pedro Neto’s equaliser but was played on, replays showed, by the deftest of accidental glances off Vladimir Coufal’s head.