Momo Sissoko clashed with Juventus teammate Felipe Melo at training yesterday.
Observers at the Juventus camp, Vinovo, said there was a game between ranks when the two collided.
The midfielders pushed and shoved each other while arguing about the incident, so teammates had to intervene in order to separate them.
However, Coach Gigi Del Neri calmed the situation and made sure they shook hands before the end of the session.