West Ham secured a crucial 1-0 victory over Manchester United thanks to a mistake from David de Gea, which gifted Said Benrahma an easy goal in the first half.
The win gave the Hammers a seven-point cushion over the relegation zone and increased their chances of staying in the Premier League.
Manchester United, who missed the opportunity to move up to third place, remained in fourth place, just one point ahead of fifth-placed Liverpool, who have a game in hand.
Despite starting brightly with both Marcus Rashford and Antony hitting the post, the visitors struggled to create chances after West Ham’s opening goal.
In the second half, West Ham pushed for a second goal with Tomas Soucek coming close twice and Michail Antonio having a goal disallowed for a foul on De Gea.
Anthony Martial had a late chance to equalize for United, but his shot from a tight angle was saved by Lukasz Fabianski.
Manchester United’s quest for Champions League football is now hanging by a thread with Liverpool breathing down their neck. United are still in fourth place with 63 points while Liverpool are in 5th place with 62 points.