The Hammers haven't kept a clean sheet in any of their last 18 Premier League home games against fellow London sides (38 goals conceded), since beating Tottenham 1-0 back in October 2021. Graham Potter has a lot to work on at West Ham and he would do well to make defensive solidity top of that list.

Graham Potter challenge made clear as Eagles continue to soar - Jean-Philippe Mateta at the double as resurgent Palace seal first London derby away win since 2022

Report as Jean-Philippe Mateta scored for a third Premier League game in a row to put Crystal Palace on course for victory before Konstantinos Mavropanos was shown second yellow for high boot on the striker;