Davide Calabria is expected to miss Milan’s Europa League encounter with Lille tomorrow due to a muscular problem.
The Rossoneri have a 100 per cent record in the group phase so far and will host LOSC at San Siro on Thursday at 20.00 GMT.
According to Sky Sport Italia, full-back Calabria will not be taking part in the match, as he is struggling with some muscular issues in training.
He could be left out of the squad list entirely, with Mateo Musacchio a long-term injury absentee.
Diogo Dalot can play on the right or left of defence, although Andrea Conti could make his comeback from the start too.