The triumph was the perfect response by the Gunners following the dismal Capital One Cup defeat to Sheffield Wednesday in midweek, and Arsene Wenger has every reason to be happy with his troops.
But who were the North Londoners’ key men?
Check out our Arsenal player ratings vs. Swansea City.
Arsenal finished off by Sheffield Wednesday star who was lucky to escape red card (video)
Sheffield Wednesday beat Arsenal at their own game with excellent one-touch team goal (video)
Two Arsenal injuries almost becomes three as Sam Hutchinson makes filthy tackle on Alex Iwobi (video)
Petr Cech – 6.5/10
A solid performance by the stopper, which, coming in contrast to Asmir Begovic’s struggles at Stamford Bridge, underlines the daftness of Roman Abramovich’s decision to sell him to Arsenal. Commanding and sure.
Hector Bellerin – 7/10
A vast contrast from Mathieu Debuchy’s midweek struggles. Bellerin made a crucial intervention in the opening half and was lively and proactive throughout.
Laurent Koscielny- 8/10
Arsenal’s star man; timing and positioning was exceptional…and he found the net!
Per Mertesacker – 6/10
Improved after his nightmare against Sheffield Wednesday, but still not the rock of security that he once was. Could have been penalised for a hand ball.
Ignacio Monreal – 7/10
Other full-backs have been troubled by Andre Ayew so far this season, but not Monreal, who largely won his battle with the Ghanaian superstar.