The Gunners destroyed Louis van Gaal's men with a 3-0 win at the Emirates Stadium on Sunday afternoon.
Not even pro-Wenger Arsenal fans.
For the north London side to go 3-0 up against United within minutes was incredible. And for Manchester United not to have a sniff thereafter continued the pandemonium for the Gunners faithful.
One particular United fan - musician and presenter Olly Murs - looked distraught in the stands as Alexis Sanchez, Mesut Ozil and co ran riot against his side...
But a look at the joy on Arsenal fans' faces was quite the opposite.
What a victory from Wenger's side, with the Frenchman actually backing up his arrogant, aggressive bravado during the pre-match press conference.
Where was this against Olympiakos? Never mind, let's not nit-pick after such a convincing victory against Manchester United, of all people...
The north London side are now just two points off Premier League leaders Manchester City - and above United on goal difference. What a day for Arsenal. And what a day to forget for Manchester United (although it wasn't quite an 8-2...)