Arsenal secured a 1-0 victory over Tottenham Hotspur on Sunday away from home after a second-half header from Brazilian centre-back Gabriel Magalhaes.
Arsenal went into the game on the back of several injuries but managed to get the better of their city rivals after a brilliant corner from Bukayo Saka provided the assist for their winner.
However, manager Mikel Arteta could be left sweating over the fitness of the England international attacker ahead of the trip to Etihad Stadium to face Manchester City next weekend.
Saka limped off after going down injured and had to be replaced by Ethan Nwaneri in the closing stages of the game.