It was a nervy finish requiring a stunning David Raya save but Arsenal hung on, just about.
Three points in the bag and top spot regained hours after Manchester City’s victory over Nottingham Forest. Manager Mikel Arteta got his result — along with a number of areas to ponder.
But Manchester City's seemingly relentless charge must have them worrying at the Emirates.
Gunners have crucial quality in title race
Winning when not at full capacity is a key ingredient in a potential title-winning side.
The churned-out victories against Wolves and Everton in recent weeks had reflected that element in an Arsenal squad who are nearing the campaign’s halfway mark having strung together three consecutive Premier League victories after their loss to Aston Villa.