Antonio Mirante was signed in the last winter transfer window but he never made an appearance for the Rossoneri. The second goalkeeper was Ciprian Tatarusanu who started when Mike Maignan was unavailable due to his wrist injury which kept him out of the pitch for around a month's time.
According to what is reported by Tuttosport, the Rossoneri club management is aiming for the renewal of Antonio Mirante. The goalkeeper would still be a third choice for coach Stefano Pioli. Then, there is the situation of Alessandro Plizzari who's loan with Lecce expires at the end of the season. A new loan for him is possible unless things change.
As for AC Milan's second goalkeeper Ciprian Tatarusanu, in a calculation linked to the Champions League list, he could be cut from the could be cut from the 17 untrained players and this could be a hypothesis not appreciated by Tatarusanu, but we will see when the squad is complete.