Vucinic has made it clear he wants to quit the Giallorossi.
Sabatini said: "We talked things over and I tried to get him to be positive, but he is very upset. I remind everyone that Vucinic is a champion with the kind of skills that only five or six players in Europe can boast.
"He is always unpredictable and in terms of technique is almost supernatural. However, the affection of the fans is needed by all players, especially someone like Mirko.
"He feels the fans do not respect him. This is a situation that can be resolved and I pointed out to him that some of it is down to his attitude. Fans must understand the psychology of a player, but it goes both ways."