Manchester United midfielder Paul Pogba handled a Declan Rice shot that appeared to be going wide to give West Ham a penalty just before halftime.
Michail Antonio scored the penalty to give West Ham a 1-0 lead at halftime before Mason Greenwood scored to ensure the points were shared at Old Trafford on Wednesday.
Manchester United captain Harry Maguire has revealed Pogba apologised for his costly mistake against West Ham.
“You can say that it’s a natural reaction from Paul,” said Maguire.
“Should he do it? He should probably take one in the face.
“He’s apologised in there. He held his hands up.”
The draw means United must avoid defeat away at Leicester on the final day to secure Champions League football.