Arsenal have won their appeal against the sending off of defender Gabriel in a stormy 2-0 defeat to Chelsea at Stamford Bridge on Saturday. As the game approached half-time, Chelsea striker Diego Costa appeared to twice rake his hands across Arsenal defender Laurent Koscielny's face before chest-bumping him to the ground. Gabriel then came over to defend his teammate, and he and Costa received yellow cards following a confrontation. A minute later, the Arsenal centre-back was sent off for flicking a boot at the Chelsea player. The Gunners appealed against the decision, and published an FA statement on their official website on Tuesday confirming it had been overturned. The statement said: "Arsenal's claim of wrongful dismissal in relation to Gabriel has been upheld following an Independent Regulatory Commission hearing. "The player's three-match suspension has, therefore, been withdrawn with immediate effect. "Gabriel was dismissed for violent conduct during the game against Chelsea on Saturday [19 September 2015]. "The player is currently subject to a separate FA charge of improper conduct in relation to Saturday's game and has until 6pm on Thursday [24 September 2015] to reply." Chelsea striker Costa, who was charged with violent conduct, faces a suspension.