Manchester City inflicted Arsenal's worst first-half performance of the Premier League era on the Gunners with a breathtaking display at the Emirates Stadium on Thursday.
Leroy Sane helped to set up two brilliant goals for Bernardo and David Silva and scored the third himself as the champions-elect ran riot over Arsenal again, four days after Sunday's 3-0 Wembley win in the Carabao Cup final.
Arsenal had never conceded three goals before half-time at home in the Premier League before, but they were perhaps fortunate to escape without further punishment, Petr Cech denying Sergio Aguero his 200th City goal.