Juventus midfielder Claudio Marchisio has revealed his contempt for Serie A rivals Napoli with the Neapolitan club demanding an explanation for his "grave insult".
In an interview with Corriere dello Sport, the Italy international was asked if there was any one player that he held particular antipathy towards and he responded by saying Napoli.
"It's not any particular face, but a team, especially after the rough Coppa Italia and Italian Super Cup finals: Napoli," Marchisio was quoted as saying in La Repubblica .
"When I am faced with Napoli, something goes off in me."