Maurizio Sarri experienced his first loss in English football as Chelsea were beaten at Tottenham 3-1, ending one of the three undefeated records in the Premier League.
Tottenham jumped above their London rival in the standings thanks to goals by Dele Alli, Harry Kane, and Son Heung-min in a rampant performance at Wembley Stadium.
The sight of Chelsea holding midfielder Jorginho clutching at thin air as Son outpaced him to score Spurs’ third goal was a fitting image, with Tottenham quicker to everything in a one-sided derby.
Chelsea, who scored a late consolation through substitute Olivier Giroud, dropped seven points behind first-place City.