The Inter Milan striker has been linked with a move away from the San Siro this summer, with Manchester City looking the most likely destination for the 19-year-old.
Mourinho, who left the San Siro for Real Madrid after guiding Inter to an historic treble last season, believes the young striker’s talent is hampered by his hot-headed nature.
“The guy has incredible qualities, but sometimes does not know how to use his brain,” Mourinho said.
“Let me give an example of when we played at home in the semi-final of the Champions League against Barcelona and he would not take the field.
“I threw him into the fray and Mario was static, not even giving a hand in defence.”
The highly-rated Balotelli has scored 28 goals for Inter Milan during his three seasons at the Serie A club.
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