The former Inter boss had a difficult relationship with the young striker during his time in Italy but suggests that the 22-year-old is at the perfect club to continue developing
The Portuguese endured a fractious relationship with the mercurial striker during his time in Italy and often argued with the Italy international over his off-field behaviour.
However, Mourinho has moved to play down any suggestions of a rift between himself and Balotelli, insisting that he found the player amusing.
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Mourinho went on to suggest that City boss Roberto Mancini is the perfect mentor for the young striker, as his long relationship with Balotelli makes him ideally suited to get the best out of him.
Indeed, the Portuguese warned the 22-year-old that if he fails under the Italian boss then he is unlikely to ever reach his full potential as a player.
"Mancini was his first coach as a professional, so before me," he added. "So for sure the same feeling I have, Mancini has probably even more than Mario.
"You know, Mario was 18 with Mancini at Inter, was 20 with me. Now, he should be 22, so the natural tendency is that he grows up and becomes the player that the talent he has.
"I've no contact with Mario in this moment, but I hope so. I hope so and Roberto knows him well, speaks the same language, knows him since he was a kid, so if he doesn't do it with Roberto, it will be difficult to do with another one - but I hope so because he's a talent."