Lets do some resting wherever it's possible.
Buffon will probably be at the goal. For the defense we don't have too many options. Probably the same defense that played today will play on Wednesday. Grygera is suspended for the next serie A match so Mellberg will probably play a RB against Lazio. That's why maybe Ariaudo can replace Mellberg against Catania.
We can play with Poulsen-Zanetti in CM, De Ceglie can play on the left but
we still don't have anyone apart from Marchionni on the right.
With Trez and Iaquinta out, one of Del Piero/Amauri will have to play next to Giovinco.
I don't think Ranieri will start with some youngsters (Esposito, Rossi, Immobile) and if we don't have some of the injured players back then this line-up might be the best choice:
Buffon
Grygera-Ariaudo-Legrottaglie-Molinaro
Marchionni-Zanetti-Poulsen-De Ceglie
Amauri-Giovinco