The Gunners forward Alexis Sanchez broke the deadlock before Gylfi Sigurdsson levelled and Bafetimbi Gomis netted a 78th-minute winner.
Here is a selection of the best Twitter reaction from the professionals after a dramatic final 20 minutes.
Former Arsenal midfielder Ray Parlour (@RealRomfordPele) wants to know if Wenger will protect his side’s lead: “Great counter for the goal. What can wenger do to make sure we hold onto this? Reply using #AfcLive”
Gunners legend Ian Wright (@IanWright0) hails Sigurdsson’s strike: “So annoying! That’s a great goal.”
Spurs legend Gary Lineker (@GaryLineker) is impressed with the Iceland international’s strike: “Fabulously struck, perfectly placed free kick from Sigurdsson.”
Former Everton midfielder Tim Cahill (@Tim_Cahill): “Wow great freekick and now that @SwansOfficial are on fire. Arsenal just pressed the self destruct button.”
Ex-Chelsea defender Mario Melchiot (@MarioMelchiot) praises Swansea’s super sub: “Super sub. GOAL! #Swans 2-1 #AFC Gomis heads home from 8 yards. Arsenal concede late again. #mmlove”
Former USA defender Alexi Lalas (@AlexiLalas) wonders if Wenger enjoys his job: “Do you think the #AFC job still holds any element of fun for Wenger? I hope it does.”
Arsenal legend David Seaman (@thedavidseaman) is frustrated with the number of goals the Gunners are conceding: “Not happy, we are conceding too many goals at important times of the game!!!! #gamemanagement!!”
Finally, celebrity Arsenal fan Piers Morgan (@piersmorgan) gives us the final result: “Paul Merson 2, Arsene Wenger 1.”
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