The great match against Milan is scheduled for March 4th at the Allianz Stadium, where both teams will battle for a spot in the final of the Coppa Italia.
Ticket sales for the match start on 31 January, starting with the pre-emption phase.
This is the calendar.
From Friday 31/1 at 10 am to Monday 3/02 at 11:59: Subscriber pre-emption
Thursday 6/02 from 10 am to 11:59 pm: reserved sales for J1897 Member
From Friday 7/02 to 10 am until Sunday 9/02 to 11:59 pm: reserved sales for J1897 and Black & White Member
From Monday 10/02 to 10.00: General ticket sales
Here is all the info, while this is the page to buy the tickets.