Magassa's late strike from a corner denies United a victory at Old Trafford.
Soungoutou Magassa's 83rd-minute equaliser earned West Ham United a 1-1 draw away to Manchester United, cancelling out Diogo Dalot's second-half strike and denying the hosts a climb into the Premier League's top five.
In a match shaped more by tension and tactical detail than by a glut of clear chances, United's 3-4-3 produced bursts of slick attacking football in each half, yet once again they failed to see out the home game. West Ham, organised and opportunistic, rode their luck before the break but stayed in the contest and punished a lapse at a corner, leaving Old Trafford to the sound of jeers, while Ruben Amorim was angry and frustrated, and Nuno Espírito Santo spoke of pride in his team's resilience.
Skittish start for United as West Ham settle quickest