AC Milan chief Adriano Galliani says they must be careful with Alexandre Pato's return.

Pato is set to see his first piece of action this weekend against Lazio.

"He is in good shape and training well, so we'll see when Massimiliano Allegri will use him and for how long," Vice-President Galliani told Sky Sport Italia.

"Pato has been out for a long time, so clearly his comeback will be a gradual process."