West Ham United fell to 2-1 defeat against Crystal Palace at London Stadium.
While Saïd Benrahma marked his 100th Claret and Blue appearance with a goal, West Ham United were unable to hold the lead the No22 gave his side with twenty minutes played in east London.
Wilfried Zaha equalised in the first half, while Michael Olise struck an injury-time winner to decide what was until that point an even London derby.
The Irons had earlier seen a penalty award overturned by VAR, but were ultimately unable to stretch their unbeaten home run to eight games thanks to that late Palace winner.