Ricardo Rodriguez, Fabio Borini and Andrea Conti have been left out of Milan’s squad to face Austria Vienna on Thursday.
Rodriguez and Borini have seemingly been omitted on technical grounds, while Conti is still recovering from an ankle injury.
Consequently, the Swiss’ place at left-back is likely to be filled by either Luca Antonelli or Davide Calabria.
A replacement for the left wing is not so clear-cut, although the likes of Giacomo Bonaventura and Hakan Calhanoglu can play there.
Milan squad for Austria Vienna: A Donnarumma, G Donnarumma, Storari; Abate, Antonelli, Bonucci, Calabria, Musacchio, Romagnoli, Zapata; Biglia, Bonaventura, Calhanoglu, Kessie, Locatelli, Montolivo; Cutrone, Kalinic, Silva, Suso