Tottenham and Arsenal players went head to head in more ways than one during a feisty first half of the north London derby.
Both teams including substitutes were involved in a melee after Eric Dier equalised midway through the first half following Pierre Emerick-Aubameyang's opener from the penalty spot.
The incident seemed to occur after Dier celebrated his leveller by putting his fingers to his lips to silence the Emirates crowd.
Arsenal substitute Stephan Lichtsteiner, warming up on the sidelines, seemed aggrieved the celebration and confronted the Spurs players congratulating Dier.