Marchisio 1 month, Del Piero still out for nearly a month, those two are the "major" injury absences. Momo and Canna are back so to speak, as in they arent classified injured anymore, but while Canna may make it, I think Momo has already said to be not probable at all for this game.
Melo is now injured, but what, how long or such is a questionmark before any tests or updates. Tiago and Salihamidzic are both still out for this game, Tiago should have been back by now based on reports, but doesnt seem to be. While Sali is just a mystery.