Arsenal defender Gabriel Magalhaes is a major doubt for next Sunday's north London derby after being sent home from international duty with an injury. The towering defender had to be withdrawn midway through Brazil's 2-0 victory against Senegal on Saturday after going down clutching his thigh. He appeared in some discomfort as he trudged towards the dugout flanked by medical staff in concerning scenes for Gunners fans. Tests have now revealed that Gabriel suffered 'a muscle injury in his right thigh', meaning he won't travel with Brazil to Lille for their friendly against Tunisia on Tuesday. The defender will instead return to Arsenal's north London training ground for treatment. Gabriel may well therefore miss his club side's clash with fierce rivals Tottenham Hotspur at the Emirates next weekend. #gabriel #arsenal #afc #football #long