Corvino has revealed he had a deal for Balotelli as a junior, only to pull out and allow Inter Milan to sign the exciting forward.
"The first contract I had done in Florence was Balotelli ... Then after the agreement with Lumezzane for &euro800,000, I met with the family which wanted to come with the boy.
"We're talking about six years ago, he is a '90.
"I could not do it, as I had just arrived in Florence. It was too much money for someone so young."