"I'll say goodbye to everybody". The unprecedented triumph is without question the Frenchman's greatest achievement in north London, and perhaps the greatest achievement of any manager in Premier League history.
Part of him may wonder what would have happened had he gone to Manchester City.
"The truth is the start of the game was a bit insane, many things happened", Griezmann said.
However things could have been very different.
Atletico retreated ever deeper towards their own goal after the break and were finally punished on the hour mark when Wilshere's deep cross found Lacazette rising above Lucas Hernandez to head in his seventh goal in seven games. "I have dreamed about this game since I was young". This selection pays out if the hosts take all three points but Arsenal manage to get on the score sheet. For the players, better than for me because they had more time off than I did but that's just the nature of the job and I think they deserve that little rest. I was a real fan.
I have never been to Old Trafford but this kind of game is why you come to play for Arsenal.
"We have shown it during the season against the big teams, most of the time, but we need to keep it up against other teams as well".
Arsenal will also have one eye on their return leg against Atletico Madrid next week.
With what was Atletico's sole chance in the second half, Griezmann pounced on a long punt badly mishandled by Arsenal defender Laurent Koscielny.
"We needed that - a little bit more experience and mental aggressiveness that I knew sooner or later were coming".
"Yes we can win in Madrid. We have to believe in ourselves that we can do it".
"In press conferences, they say "Wenger said that" even if it is taken out of context and you then get people who are upset or vice versa".
Wenger has had numerous run-ins with United boss Jose Mourinho, as he did with Ferguson earlier in his Arsenal career, although the Portuguese has said he regrets "negative episodes" between the pair. "It's unusual for me to see him in a different shirt because he had a strong bond with the club and of course he was here for a few years".
"For him, it was a move to another big club".