Allegri has done a great job at rotating all players have been consistently used in rotation i don't know exactly what's the problem about our injuries I guess the way(apart from daily training with our players) which Allegri brought in just doesn't suit for Physical condition of players.
As far as the squad is concerned, preseason schedule. That affected the whole squad.
As far as Khedira is concerned, it's preseason schedule + likely his injury-proneness from past two seasons hasn't dissipated.
4th injury so far this season counting preseason.
It happens again in couple of hours after you post this.

By the way, it seems like your post jinx khedira to be injured
Bloody hell. He is out for 3 weeks. I was just saying he seems to have overcome his injury problems.
Because he was fit for 1.5 month? I just hope he'll be fit at the business end of the season. Hard to tell how much of this is him being injury-prone and how much is the result of the highly intense and concentrated preseason.
Oh what the $#@!...so he's out for Bayern too?
So that's him, Asamoah, and Mandzukic out for first leg? Anyone else?
Asamoah might be match-fit by then, and I'll be content with him on the pitch vs Bayern. He's a good CM himself.
Khedira might not be, but he did well vs Sevilla (his 1st game of the season) when he wasn't. He didn't vs Fiorentina though (his 1st game back the 2nd time).