Full time: West Ham 1-2 Crystal Palace.
Crystal Palace snatched victory at West Ham as Jordan Ayew had an 87th-minute goal awarded by the video assistant referee.
Ayew was initially ruled offside by assistant referee after he stabbed in from close range but the decision was overturned after a lengthy VAR review.
Sebastien Haller had given West Ham the lead when he swept home.
But Palace equalised through Patrick van Aanholt's penalty before Ayew's goal secured all three points.
The win moved Roy Hodgson's side into the top four of the Premier League while ending West Ham's six-game unbeaten run.
Premier League Fixtures, Sunday, October 6.
Arsenal vs Bournamouth
Man City vs Wolves
Southampton vs Chelsea
Newcastle vs Man Utd.