The strike restored Palace’s momentum, and Muñoz, Eddie Nketiah – on as a substitute for his first appearance of the season – and Jefferson Lerma all threatened the West Ham goal in the next few minutes, the latter forcing a low stop from Areola on the volley.
As the match entered its final quarter-of-an-hour, there was still some defending for Palace to do – with Richards in particular producing two important challenges.
As the home team poured more bodies forwards, opportunities did open up for Palace in the final third, with Devenny bending a strike high and wide from the edge of the ‘D’ in the closing stages.
Seven additional minutes gave West Ham cause to apply further pressure – but in truth Palace’s goalmouth was seldom threatened in that time, as Mateta and Mitchell’s goals proved enough to secure back-to-back wins at London Stadium for the first time in a decade.
West Ham: Areola (GK), Walker-Peters, Mavropanos, Kilman, Diouf, Ward-Prowse, Fernandes (Magassa, 78), Paquetá, Bowen, Summerville (Luis Guilherme, 78), Wilson (Füllkrug, 59).
Subs: Hermansen (GK), Igor, Todibo, Scarles, Rodríguez, Irving.
Palace: Henderson (GK), Muñoz, Richards, Lacroix, Guéhi, Mitchell, Hughes (Lerma, 65), Wharton, Pino (Devenny, HT), Kamada, Mateta (Nketiah, 75).
Subs: Matthews (GK), Clyne, Canvot, Sosa, Cardines, Uche.
As It Happened