Belgian calmly slots home after Mathieu Flamini is caught dawdling on the ball.
Arsenal had been in complete control before the home side lost possession and a ball through to Chadli was calmly slotted home to give Spurs the lead in the north London derby.
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Chadli was played in after sub Flamini had foolishly lost the ball which handed the away side the chance to take the lead, a chance the Tottenham wide-man skillfully accepted.
Against the run of play. Nacer Chadli scores for Tottenham #AFC 0-1 #THFC https://t.co/WBNnOMXbjE
— GoalClips (@GoalClips) September 27, 2014