And just like the draw with Anderlecht, Alexis Sanchez was head and shoulders above most of his team-mates.
The Chile forward put Arsenal ahead in the 63rd minute, before Gylfi Sigurdsson equalised in the 75th minute and then Bafetimbi Gomis scored a header three minutes later, causing the Liberty Stadium to erupt.
As ever, the internet was quick to react to this stunning match, here are the best tweets and memes...
Arsenal are next in action at home against Manchester United on 22 November after the international week.
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