The Argentine returned to Chelsea at the start of the season after a hugely successful loan spell at AC Milan.
Crespo has failed to hold down a regular starting place at Stamford Bridge this season and told Sky Italia he would be keen on a possible return to Serie A.
"I would like to return to Italian football," said Crespo. "I'd like to go back to Serie A because Italian football is made for me.
"I still have two years to run on my current deal. But we will see.
"Carlo Ancelotti will always be my favourite coach even if I were to join another club."