Ferguson released his eagerly-awaited memoir to much fanfare this week and, in it, the former Manchester United manager details the aftermath of his side's famous victory that ended Arsenal's 49-game unbeaten streak.
Ferguson explains how after the match, which Manchester United won 2-0, players and coaching staff became involved in a fracas when heading towards the dressing rooms.
Wenger, claimed the Manchester United icon, was particularly incensed about the result, and stormed around in a rage before, of course, Ferguson was struck by a slice of pizza thrown by an Arsenal player.
The Arsenal boss has now had his right of reply to the suggestions made by Ferguson, and explains how the failure by the referee to send off Rio Ferdinand wrangles even now, nine years on.
"It's difficult for me to answer any suggestion about this book because I didn't read it yet," Wenger told reporters.
"The pizzagate, I think it was a little unrest in the corridor after the 49th game, refereed by Mike Riley at the time, who is now responsible for the referees.
"I think on that day, he had not his best day and that brought a lot of frustration on because on that day, Ferdinand should have been off after 20 minutes so I believe that's what created all the problems in the corridor.
"Yes, it was aggressive because to lose the way we lost after such a long undefeated run was not acceptable for me and that's why everybody was frustrated."