Manchester United are just a point outside of the top four after Marcus Rashford's 100th goal for the club beat a battling West Ham.
Rashford, who had an earlier header saved by Lukasz Fabianski, rose to brilliantly power home Christian Eriksen's superb cross seven minutes before half-time for the game's only goal.
West Ham were threatening throughout the game though, and after Said Benrahma came close in the first half, David de Gea superbly saved from Kurt Zouma's header in the second.