Substitute Andriy Yarmolenko's late strike earned West Ham United a precious 3-2 victory over Chelsea in a topsy-turvy Premier League derby on Wednesday.
Yarmolenko raced clear in the 89th-minute to plant a shot past Kepa Arrizabalaga and clinch three vital points in West Ham's battle to avoid relegation.
Willian had put Chelsea in front in the 41st-minute from the penalty spot but Tomas Soucek, who had already had a goal ruled out by VAR, headed the hosts level on the stroke of halftime.
Michail Antonio then turned in Jarrod Bowen's cross shortly after the break to give the hosts the lead.