John Stones’ 98th-minute equalizer rescued Manchester City from defeat and shattered Arsenal’s hopes of a famous win at the Etihad.
Despite playing with ten men for almost half the game, Arsenal were on the brink of a massive victory before Stones poked home from a late corner.
His goal extended City’s unbeaten home run to 48 matches.
Erling Haaland gave City the lead early with his 100th goal for the club.
Arsenal responded brilliantly, with debutant Riccardo Calafiori smashing a 20-yard screamer past Ederson.
Gabriel then put Arsenal ahead with a header just before half-time, but Leandro Trossard’s red card in added time left the Gunners battling with a man down for the entire second half.
David Raya made crucial saves to deny Haaland and City, but Stones’ last-gasp strike ensured the champions snatched a point, breaking Arsenal’s hearts and sending City back to the top of the table.