The bizarre episode took place after Rossi substituted Ljajic with 32 minutes gone and Fiorentina 2-0 down.

The Serbian midfielder was clearly not happy with the decision to remove him from play and gave his boss a round of ironic applause as he walked towards the dugout.

Rossi was outraged and flew at Ljajic, clearly landing blows on the player as others tried to keep them apart, before getting up and carrying on as though nothing had happened.