Eurosport - Stramaccioni and Cassano (Imago)
Local media reported that Cassano was suspended by the club after the pair nearly came to blows on Friday.
"What happened could happen in any changing room in Serie A," Stramaccioni said.
"There wasn't any physical contact, only a discussion, just as there has been in the past."
Stramaccioni said Cassano would return to training on Monday and would be in the squad for Thursday's Europa League match against Premier League side Tottenham.
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