Manchester City extended their unbeaten Premier League run against Arsenal to 12 matches with a 5-0 victory at the Etihad Stadium.
The hosts took a seventh-minute lead courtesy of an Ilkay Gundogan header and Ferran Torres doubled Man City's advantage five minutes later from close range.
Granit Xhaka was dismissed for serious foul play, following a challenge on Joao Cancelo in the 35th minute. Gabriel Jesus then finished from Jack Grealish's pass to add a third before half-time.
Rodri's pinpoint 25-yard strike made it four on 53 minutes, before Torres headed in substitute Riyad Mahrez's cross to complete the scoring six minutes from time.
City, who have now won their last three home league matches 5-0, are third in the table, a point behind joint-leaders West Ham United and Everton.
Arsenal sit bottom with three defeats from three matches.
See: Man City report | Arsenal report
Next fixtures
Man City: 11 Sep v Leicester (A)
Arsenal: 11 Sep v Norwich (H)
Match officials
Referee: Martin Atkinson. Assistants: Lee Betts, Richard West. Fourth official: Andy Madley. VAR: Darren England. Assistant VAR: Peter Kirkup.
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