Arsenal overcame David Luiz’s dismissal against his old club to twice come from behind against Chelsea in an eventful London derby.
The Chelsea forward had pounced on a terrible backpass by Shkodran Mustafi and rounded keeper Bernd Leno when he was shoved over by Brazil defender Luiz.
Chelsea were dominant for long periods but failed to kill the game off.
They were punished when N’Golo Kante slipped inside the centre circle allowing 18-year-old Gabriel Martinelli to gallop free and produce a superb finish, the Brazilian becoming the first teenager to reach double figures in a single season for Arsenal since Nicolas Anelka in 1998-99.
Chelsea thought they had won it when skipper Cesar Azpilicueta scored from six yards six minutes from time but spirited Arsenal earned a point through captain Hector Bellerin – making his first appearance since 5 December – from outside the penalty area. (BBC)