Thibaut Courtois missed from the spot as Arsenal claimed the Community Shield by beating 10-man Chelsea 4-1 on penalties, the Gunners coming from behind to level the match 1-1 after normal time.
While goalkeepers are often the heroes in penalty shootouts, Courtois proved otherwise, blazing Chelsea's second spot-kick wildly off target before new signing Alvaro Morata saw his kick saved by Arsenal keeper Petr Cech.
Olivier Giroud was left with the task of hitting the decisive penalty for Arsenal, and the Frenchman did so with aplomb, adding to successful attempts by Nacho Monreal, Theo Walcott and Alex Oxlade-Chamberlain before hime.
Prior to the shootout drama, Victor Moses, who was sent off when the Blues lost the FA Cup final to Arsenal in May, struck early in the second half with what looked like being the winning goal.
But Chelsea had Pedro sent off for a rash challenge on Mohamed Elneny and Arsenal substitute Sead Kolasinac, taking his competitive bow, scored a header from the resulting free-kick with eight minutes remaining.
Alexandre Lacazette, given his Arsenal debut from the start, came the closest to breaking the deadlock in the first-half, sending a curling strike against the post before the half ended goalless.
Chelsea scored the opener inside 50 seconds of the restart, but as the Gunners ramped up the pressure late in the game, Antonio Conte's men couldn't hold out for the victory.
Arsenal has now won the Community Shield three times in the past four years, while the Blues have lost four consecutive appearances in the fixture.
Victory for Arsene Wenger's men means the Shield has seen the FA Cup winners beat the defending Premier League champions for four consecutive seasons.