Former Fiorentina coach Cesare Prandelli insists Dusan Vlahovic will prove his quality at Juventus.

There have been doubts about Vlahovic ever since his move from Fiorentina 18 months ago.

But Prandelli told Corriere di Torino: "I have never had doubts about him, much less now. He has crazy qualities. He just needs to find more serenity within himself, more conviction within his means.

"He doesn't have to prove something with every play. He has to play for the pleasure of it. Knowing him well, I take the liberty of suggesting this to him."

Many still accuse him of being too moody, but Prandelli says: "All attackers are like that. It's normal that, when goals don't arrive, thoroughbred strikers are inclined to have certain attitudes and behaviors.

"Let's not forget that he is a boy from 2000 who has already scored more than 60 goals in Serie A. I repeat, he just needs a little serenity."