Arsenal will remain top of the Premier League until October 1 at least.
This follows the Gunners’ 3-0 win over Brentford on Sunday in the early kick-off.
Mikel Arteta’s men came into the game sitting in third after Manchester City and Tottenham both won their fixtures on Saturday.
But William Saliba and Gabriel Jesus struck in the first half to put Arsenal in the driving seat.
Fabio Vieira, who was making his full debut, slammed in a long-range effort after the break, to seal the points.
Arsenal will face Tottenham Hotspur after the international break.