Darko Kovacevic insists Dusan Vlahovic will prove himself at Juventus.
The Serbia striker has battled for consistency this season.
But former Juve striker Kovacevic told La Gazzetta dello Sport: "He's exceptional, simply a top player in his role. The key word for him is trust, he must not get caught up in negativity when things aren't going well. Allegri and his teammates must always make him feel important, it's fundamental for a bomber."
"It happens and will happen in matches in which he doesn't touch a ball because the team concedes and stays low, the right opportunity doesn't come. In those moments nervousness is useless.
"He must be serene, he is strong, strong, strong. He has Chiesa next to him, a top-level partner."