It is not the first time that Balotelli has been involved in a clash with a team-mate during training.
He infamously scrapped with former defender Jerome Boateng after reacting badly to a challenge and was also photographed clashing with Kompany. But he was not involved when Kolo Toure and Emmanuel Adebayor came to blows last season.
Last night a club insider played down the incident, telling the Daily Express: "It was something and nothing. It happened in the heat of the moment.
"These things happen on every training ground virtually every day of the week. They shook hands afterwards and there are no hard feelings. They are good mates and will remain so."