Bukayo Saka has scored in each of Arsenal's two Premier League games this season.
Bukayo Saka's second-half goal proved the difference as Arsenal overcame a stubborn Aston Villa side in a close encounter at Villa Park.
The England international fired home from close range near the hour mark after neat interplay between Eberechi Eze and Riccardo Calafiori broke through a stubborn Villa defence.
The result means the defending champions maintain their winning start to the season while Villa remain searching for their first victory of the campaign.