Mourinho was sacked as Manchester United manager in December last year following a troubled two-and-a-half seasons.
“I think Mourinho has done his time," he said on ESPN.
“But I think he lost something, I remember all the players would say 'we love him'.
“I remember at Inter (Marco) Materazzi crying and everything.
“I think he has lost that, to the point where even the players who played at Manchester begun to hate him.
“I think he has to think about his life and if he wants to go back to a big club, maybe PSG, but he has to change stuff."