Celtic's Forrest fit, Mexes out for Milan

The winger missed the weekend victory over Aberdeen with a hamstring injury but trained on Monday.

Midfielders Scott Brown and Nir Biton are suspended and long-term absentees Adam Matthews (shoulder) and Steven Mouyokolo (Achilles) remain sidelined.

Milan will travel to Glasgow without Philippe Mexes as the defender has picked up an eye problem, but midfielder Antonio Nocerino returns to the party after injury.

Allegri’s hopes to have Stephan El Shaarawy and Mattia De Sciglio back have been dashed, while Marco Amelia is missing too because of injury.