Milan are finalising a deal with Sampdoria for the firebrand.
"I think this is a Last Chance Saloon for him and that Milan are the very best he could've hoped for," Rossoneri director Leandro Cantamessa told Calciomercato.it.
"He was fortunate and I don't think he wants to let this opportunity slip him by. He has talent and if he cares about himself at all, he won't fail in this once-in-a-lifetime chance."
Cantamessa also confessed that Ronaldinho was likely to make way for Cassano.
"The players do more or less take the same role, so it could be an understandable club decision. Besides, the Coach has made it clear what he thinks."