#1 Lack of end-product from Watford
Lack of clinical finishing, coupled with bad fortune, saw Watford return goalless from the North London fixture. They threatened Arsenal's shaky backline throughout the game and at times, looked likely to nick a win from the encounter.
They created nine chances and had four shots on target in the 90 minutes, but failed to convert any of them into a goal.
Their best chances in the game came through a strong strike from Troy Deeney that extracted a good save from Leno, and a chip from Isaac Success that hit the far post. The score remained 0-0 though, and once Arsenal got the second half chances, they were able to capitalize.
The Gunners now have fifteen points in seven Premier League games, with two losses and five wins under their belt.