WATCH: Chelsea go 2-0 up against Crystal Palace with calamitous own-goal

Crystal Palace defender Martin Kelly was left with egg on his face thanks to an embarrassing own goal against Chelsea.

The former Liverpool man tried to clear Davide Zappacosta's goal-bound shot but inadvertently struck goalkeeper Wayne Hennessey instead, before the ball rebounded off him and into the back of the net.

Palace were already behind to Willian's opening goal - which itself deflected off Kelly - and ended up on the wrong end of a 2-1 defeat to the Premier League champions.

Click play above to see the own goal in all its glory.