Pierre-Emerick Aubameyang's second-half goal handed Arsenal their first points of the season as they completed a 1-0 win over Norwich City.
Arsenal started brightly with Aubameyang shooting over from distance early on.
Norwich showed their threat on the break with Kenny McLean glancing a header wide from a Max Aarons cross, while Aarons also tested goalkeeper Aaron Ramsdale, making his first league appearance for the Gunners, on 26 minutes.
Arsenal stepped up the pressure in the second half and Brandon Williams made a vital block to deny Nicolas Pepe.
Pepe then had a hand in Arsenal's first goal of the season, which arrived on 66 minutes. Pepe's shot came back off the post and Aubameyang tapped in his fifth goal in three appearances against the Canaries.
Arsenal move up to 16th with three points.
Norwich drop to the bottom of the table without a point from four matches.
Arsenal: 18 Sep v Burnley (A)
Norwich: 18 Sep v Watford (H)
Referee: Michael Oliver. Assistants: Stuart Burt, Simon Bennett. Fourth official: Gavin Ward. VAR: Mike Dean. Assistant VAR: Eddie Smart.