The Rossoneri chief thinks that the Swedish star's action was not overly aggressive and believes that he will be back in action by the time the club visit Juventus
The Sweden international was shown a red card in the second half of the match for slapping Aronica, an action which could earn him an automatic three-game ban if considered violent conduct.
"I am reading catastrophic opinions, but there was no violence involved," Galliani told Milan Channel.
"I think that Ibrahimovic will not be suspended for more than two matches.
"Aronica's gesture towards Antonio Nocerino? I saw it, the referee did not."
After the match, Milan coach Massimiliano Allegri admitted that Ibrahimovic deserved a red card for his action.
In case of a three-match suspension, the former Barcelona striker will miss the club's Serie A matches against Udinese, Cesena and Juventus.
How do you stay up to date with football when on the move? With http://m.goal.com – your best source for mobile coverage of the beautiful game.