Inter Milan striker Antonio Cassano went gunning for the match officials at halftime of their victory over Juventus on Saturday.
Cassano was furious that Juve's goal was allowed to stand, while Stephane Lichtensteiner also escaped instant dismissal.
La Gazzetta Sportiva says a fuming Cassano demanded an explanation over the two calls from match officials at halftime. Inter coach Andrea Stramaccioni was yet to deliver his halftime talk when Cassano and several teammates confronted the men in black.
Cassano was the most vocal and took issue when the match officials walked away from the scene: "Why are you leaving? Educate me! Tell me how these decisions are made."