Calabria says Leao needs to believe more in himself.
If he becomes more aware of just how talented he is, then he can become the best in the world. I think he can win the Ballon d'Or," said Calabria.
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In terms of technique and physical characteristics, I don't see many like him."
He also said on Radio Serie A: It is still early to talk about Inter getting their second star in the derby.
There are a lot of matches to play before then and we will do everything to win them all, so that won't happen."