Milan have rejected an approach from Juventus for Luca Antonini, reports La Gazzetta dello Sport.
The Old Lady are still looking to strengthen their squad and full-back Antonini is known to have an admirer in director general Beppe Marotta.
The Bianconeri are said to have enquired about the defender's availability, but were told that he is not for sale.
Antonini, 29, has been at Milan since his 2008 switch from Empoli. He's played 55 League games for the Rossoneri ever since.