Uncertainty continues to swirl around the Germany international's future, with his contract due to expire at the end of next season, but Sogut stressed that he is fully focused on helping Arsenal to succeed.
"I don't think the criticism has affected his performance or his mental state," he told BBC Sport.
"Mesut is committed to the club. There is no doubt that he will perform at 100%, with total professionalism and commitment as long as he plays for Arsenal. Nothing will change that.
"He is sorry to the fans, and he's sorry that he and his teammates couldn't give the fans a better result in Munich."
Ozil last season created 137 chances in the Premier League - the most any player has ever managed in a single campaign.