The head coach of the Champions League holders has urged Gunners supporters not to forget about everything that the French manager has done for the Emirates outfit
Wenger has already infuriated Arsenal fans with his decision to cash in on Cesc Fabregas to Barcelona and Samir Nasri to Manchester City this summer without signing adequate replacements.
Nevertheless, Guardiola has stressed that people should not forget everything that the Frenchman has done for his club and that the loss was down to injuries rather than the sale of key players.
"We should not forget what Wenger has done for football in general and for Arsenal in particular. They are still a great team, regardless of what happened against Manchester," Guardiola said in a press conference.
"These things can happen in football. Manchester United have so many good players, while Arsenal were without a lot of players due to injury.
"This loss was not down to the departure of Cesc and Nasri, but also because of Jack Wilshere's absence due to injury and several more players who were unavailable."
Arsenal will be looking to bounce back from their loss when they meet Swansea City on September 10.