Crystal Palace beat West Ham to pile the pressure on Hammers boss Graham Potter amid fan protests before and during the match at London Stadium.
Jean-Philippe Mateta pounced to nod in the rebound after goalkeeper Alphonse Areola had pushed Marc Guehi’s header on to the crossbar as the visitors took a 37th-minute lead.
Jarrod Bowen equalised early in the second half when he pulled away from his marker to head into the net following El Hadji Malick Diouf’s corner.
The home fans responded as their side enjoyed a bright spell, but Lucas Paqueta had an effort cleared off the line by Chris Richards, with Kyle Walker-Peters also unable to convert two opportunities.
West Ham’s failure to grab a second goal proved costly as Tyrick Mitchell was afforded too much space in the penalty area and controlled a superb volley into the net for what proved to be the winner.
Earlier on Saturday, about 3,000 Hammers fans protested before the match, with angry supporters holding flags and banners and chanting about chairman David Sullivan and vice-chair Karren Brady.
The unhappiness continued during the game as there were more “sack the board” chants from the home supporters when the match was goalless, with the hosts booed off at half-time when they were trailing and again at the final whistle.
West Ham’s miserable day continued as Palace fans chanted “you’re getting sacked in the morning” at Potter, with some of the home supporters joining in.
Potter has now only won six of his 23 league games and picked up 23 points since replacing Julen Lopetegui in January. The Spaniard also collected 23 points from his spell in charge, but did so in three fewer games.
