The Gunners took the lead through the unlikely source of Nacho Monreal early in the first half, and Alex Iwobi made it two after the interval when he was set up by a brilliant Alexis Sanchez backheel.
The result moves Arsenal up to fifth place, level on points with champions Chelsea, but six points behind pace-setters Manchester City and Manchester United.
After the international break, Arsene Wenger’s men will take on Watford away, as they look to continue their resurgence.
CLICK THROUGH THE GALLERY ABOVE TO SEE HOW EACH ARSENAL STAR RATED OUT OF 10.
