Gazzetta dello Sport reports Cassano had a blazing row with his teammates during a training session, then carried on abusing Donadoni and director Pietro Leonardi.
"Leonardi will say more on the issue next week. If the players said what they said, it's because there wasn't any problem like that.
"I don't know where these stories come from and in any case, whether they are positive or negative, it is right that we keep our issues in-house."
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