Eddie Nketiah scored a hat-trick as Arsenal breezed past bottom club Sheffield United 5-0.
The Gunners saw plenty of the ball from the outset and broke through on 28 minutes when Nketiah expertly collected a cross from behind his body, then slotted home.
Nketiah doubled the advantage five minutes into the second half, slamming in from close range, then blasted a 25-yard shot into the top corner to complete his hat-trick in style.
Fabio Vieira scored a late penalty, having won the spot kick himself, before Takehiro Tomiyasu netted from a stoppage time corner to complete the rout.
The resounding victory was a triumph for Arsenal manager Mikel Arteta, who made five changes but still watched his side produce a well-drilled and overpowering performance.
Arsenal go second and now have 24 points, two fewer than leaders Tottenham. The Blades remain bottom with only a lone point after 10 matches.