Alexis Sanchez, Theo Walcott and Mesut Ozil each scored a goal as Arsene Wenger's men picked up a fourth consecutive win in the Premier League
Arsenal cruised to a comprehensive 3-0 win over Chelsea to hand Antonio Conte's side back-to-back Premier League defeats in the London derby at Emirates Stadium.
A match expected to be a closely contested affair was blown apart in the 11th minute when Alexis Sanchez capitalised on a dreadful error by Gary Cahill to open the scoring on his 100th Arsenal outing.
Theo Walcott - also reaching a milestone in his 350th game for the Gunners - added a quickfire second, crowning a glorious passing move, and there was further attacking brilliance as the influential Mesut Ozil made it 3-0 five minutes before half-time.
A first league win over the Blues since October 2011 moves Arsene Wenger's team up to third in the table behind Manchester City and Tottenham, who meet next weekend, while Conte has work to do as the early stages of his Chelsea reign veer off course.
Watch the sensational victory below: