Pep Guardiola's double substitution worked a treat as Manchester City cut Arsenal's lead to five points and he joked: “I'm a genius.”
The Blue Moon messiah sent on wingers Jack Grealish and Riyad Mahrez after an hour at Stamford Bridge – and within seven minutes they combined for the Algerian's sixth goal of the season for the winner. City's win piles the pressure on Chelsea boss Graham Potter, whose side have now taken just six points from a possible 24 and look long shots to finish in the top four.
Grealish admitted afterwards that City's dressing room was “lively” at the interval after a sloppy opening 45 minutes.
