Torres will spend two seasons with the Italian outfit, which will see out the remainder of his current contract with the Blues, having failed to live up to his then-British record £50million move from Liverpool in 2011.
Mourinho admitted he has the upmost respect for Torres and hopes he thrives with his new club.
"About Fernando I have to say, with the respect that I bring to all my former players, that as a professional and as a person there is no discussion," said Mourinho.