The trainer, who was dismissed by the Florence-based outfit after punching the Serbia international during the draw against Novara, has shed more light on the incident
The Serbian was clearly upset about being substituted in the Viola's 2-2 draw with Novara on Wednesday, and taunted his boss over the decision.
Rossi in turn responded by attacking the player on the bench and this resulted in the coach being sacked shortly after the game.
"As Ljajic was entering the dugout, he turned to me and offended me in Serbian," Rossi told La Repubblica.
"But I have coached many Serbian players, and I understood what he said, he said 'f*** your mother'."
Rossi has been replaced at Fiorentina by Vincenzo Guerini.