Milan will target Angelo Ogbonna should they decide to part company with veteran centre-back Alessandro Nesta.
The latter, who will be 36 next month, will be out of contract in the summer and it is unclear at this stage whether he will be offered a new deal.
Should the former Lazio captain leave the Stadio Giuseppe Meazza, then Milan will ask Torino about the availability of Ogbonna.
The 23-year-old started his first game for Italy last week, in the 1-0 defeat against America, despite playing his football in Serie B.
Ogbonna signed a new contract with Toro until June 2016 earlier this season.
Clubs such as Napoli, Benfica, Arsenal and Juventus have been paired with the versatile stopper in the past.
A report in Tuttosport earlier this week also suggested that Nesta could be targeted by Juventus should he become available on a free transfer.
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