Crystal Palace's furious first-half performance inspired them to a 5-2 thrashing of West Ham, whose top-six hopes suffered a blow on a miserable afternoon at Selhurst Park.

David Moyes' side produced a dreadful first-half display and were embarrassed in the opening 31 minutes, with Michael Olise and Eberechi Eze seemingly untouchable.

Olise opened the scoring after just seven minutes before Eze converted a rebound with an audacious bicycle kick. Emerson then summed up the Hammers' display by bundling the ball into his own net after a miscommunication with the beleaguered Lukasz Fabianski.

Jean-Philippe Mateta was left unmarked to slide in Palace's fourth. While Michail Antonio pulled one back before half-time, Mateta was able to fire in a fifth after more outstanding build-up play by Eze.

Even Dean Henderson's late error, allowing Tyrick Mitchell's pass to bobble into his own goal, won't take the shine off Palace's win - the first time they have claimed back-to-back Premier League victories in a year.

The heavy defeat completes a miserable week for West Ham, who exited the Europa League on Thursday and are now in danger of missing European qualification as their season threatens to peter out.