Despite taking the lead within six minutes, Crystal Palace lost a thoroughly well-fought battle at the London Stadium after a West Ham comeback stole three points thanks to a three-goal smash-and-grab 17 minute spell.
The game opened well for both sides, and the hosts found themselves squandering a strong early chance as Chicharito Hernandez fired into the ever-approaching legs of Wayne Hennessey within four minutes. Palace's Max Meyer and Wilfried Zaha were then frustrated to break into the Hammers' box but not find anyone in yellow with their crosses.
It was a more unlikely goalscorer in James McArthur who opened the Eagles' account just minutes later, however, as he raced into United's box to prod a Cheikhou Kouyate header underneath the oncoming home 'keeper, Lukasz Fabianski.