The former AC Milan forward will miss this weekend's match versus Catania after he was axed from the team following an incident in the locker room
Stramaccioni has downplayed the significance of Friday's incident, but has nonetheless dropped the Italy international from the roster for the trip to Sicily.
"It's not a suspension. What happened yesterday is something that happens often, it was just a discussion," Stramaccioni said at a press conference.
"What was reported today shows the media do not love us, and it should have stayed in the dressing room.
"It was a discussion and there was no physical contact. It bothers me that it has come from an outside source who wants Inter to fail.
"I reiterate that Cassano has not been suspended, otherwise he would have trained. He will return to training on Monday and, if nothing else happens, he will be in the squad for the trip to London on Thursday."
Sunday's match is scheduled to kick off at 15:00CET.