The two Italians never saw eye-to-eye while together in Madrid.
Cassano said, "In Tarragona he had me warming up all the second half with Ronaldo.
"In the locker room I told him: 'You are a s*** man, you are more false than Monopoly money!"
Cassano also remarked: "What I regret the most in my career is leaving Real Madrid. I was in the best team in history and I could have stayed longer and won much more. I followed my instinct, made mistakes and left."