Mancini, however, says Balotelli is still maturing.
"Mario can always have some idiocy, but he's growing," he said.
"Maturity does not come in one day, let's give him time. He deserves it: Mario is a good guy."
He also insisted that Silva can be ranked alongside any player in the world.
"Silva is at Xavi and Iniesta levels. He's a champion."