Arsenal bounced back from their Europa League frustrations to claim a comprehensive 3-0 at Sheffield United on Sunday.
Arsenal strolled to a convincing 3-0 win over relegation-bound Sheffield United in the Premier League on Sunday.
The Gunners bossed the early stages of the game, with Gabriel Martinelli making a rare start in the absence of captain Pierre-Emerick Aubameyang.
Bukayo Saka was another impressive performer, roaming around the attack with Granit Xhaka filling in at left-back.
Arsenal got the goal their play deserved 33 minutes in as Lacazette finished a well-worked team move featuring Saka and Dani Ceballos, with the French striker tucking home to celebrate being named captain on the evening.
The only issue for Arteta in a dominant opening 45 minutes was the fact that Arsenal had not added to their opener and closed out the game by the half-time whistle.
The second half continued in the same fashion. Sheffield United lacked the quality to truly test Bernd Leno or commit enough bodies forward to catch out the Gunners.
Arsenal soon got their second through Martinelli after the Brazilian tapped home from close range after a rebound via a Pepe shot.
Lacazette added a third for Arsenal with a ruthless finish after a fine turn and pass from Thomas Partey in midfield to give the score-line the gloss it deserved. It was a milestone goal for the Frenchman as he scored his 50th goal overall in the Premier League.
The only gloom to the result was Bukayo Saka, with the youngster picking what appeared to be a thigh injury.
Regardless, Arsenal will be aiming to build on an impressive win and go all out to get the job done in the return leg against Slavia Prague in the Europa League.
Player ratings
Sheffield: Ramsdale (5), Stevens (6), Egan (5), Ampadu (6), Osborn (6), Fleck (5), Norwood (6), Lundstram (6), Baldock (6), Burke (5), McGoldrick (5)
Arsenal:ย Leno (6), Chambers (7), Holding (7), Mari (7), Xhaka (8), Ceballos (6), Partey (7), Saka (7), Pepe (7), Martinelli (7), Lacazette (8)