Former Juventus director general Luciano Moggi has urged fans to get behind coach Max Allegri and his players.
Moggi was impressed by the midweek Coppa Italia semifinal first-leg win against Lazio.
He told Radio Bianconera: "Juve had too many players arguing with each other. That's a sign of nervousness. But in the second half Juventus showed their self-confidence and Lazio's disappeared.
'Now you will see another Juventus against Fiorentina. It will be a more energetic, more self-confident team.
"Do they whistle? The fans pay for the ticket but not the millions needed to pay the players. And above all, the fans should keep one thing in mind: with this team any coach would do less than what Allegri is doing."