The Hammers claimed their third win in four games as Jose Mourinho's side were overwhelmed
West Ham captain Mark Noble says a team effort made victory over Manchester United possible on Saturday.
The Hammers pilled the pressure on Jose Mourinho with a 3-1 success at the London Stadium.
Felipe Anderson's first West Ham strike, Viktor Lindelof's own goal and Marko Arnautovic's effort secured the three points for Manuel Pellegrini's men.
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Marcus Rashford did half the deficit for the visitors but they were unable to mount a comeback as West Ham secured a third win in four games having lost their opening four matches of the campaign.