The on-loan Liverpool striker missed a penalty on Sunday.
Known as something of a penalty expert, the 25-year-old's spot-kick nous let him down at a potentially crucial period in his career, with the Italian previously admitting that he wants to stay with the Rossoneri rather than return to his parent club this summer.
That decision will ultimately lie with veteran director Galliani who, according to Milan News, received a telephone call from the former Manchester City man who apologised for his error from 12 yards.
The miss came on 49 minutes when Milan were trailing 2-0, but goals from Carlos Bacca, Luca Antonelli and a last-minute penalty from Jeremy Menez, when Balotelli was on the pitch, ultimately salvaged a point for the hosts.
By virtue of the fact that Balotelli did not demand the chance for redemption late on, it might be fair to say that his confidence has taken a knock this season, having netted just once in 19 Serie A appearances - only seven of which were starts.
Nevertheless, it was reported by Gazzetta Dello Sport last week that Galliani would retain the forward's services beyond this season, despite his less-than-impressive goal return.