So lets look at the squad.
GKs - all fit.
DEF:
Alves, Bonucci, Barzagli - all out.
Benatia & Chiellini - not realiable injury wise.
Lichsteiner - just came back from injury.
Rugani and Evra only ones reliably fit at the moment (Rugani was out earlier in the year).
Sandro fit.
MIDs:
Marchisio - just back from injury
Khedira is Khedira i.e shouldn't play every game
Asamoah is Asamoah
Hernanes is fit but not reliable form wise.
Lemina fit but black listed.
Sturaro fit but hopeless.
Pjanic fit but inconsistent.
i.e we don't have 3 players of quality that could play week in week out without caution.
FWDs:
Dybala and Pjaca still out
Mandzukic has been injury prone
Higuain just came back.
Cuadrado still fit but has played a lot recently
Kean - fit but too young and raw to gain Allegri trust.
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Bottom line, a very large portion of the team is injury prone. Just when Dybala and Pjaca come back, don't be surprised to see Mandzukic or Higuain get an injury. Or when Barzagli and Bonucci come back, Chiellini gets a long term injury or Rugani or Benatia.
It makes you anxious even if we have all the players back from injury as you are always worried about the next one.