Adzic struck in injury-time for Juve as they defeated Inter Milan 4-3.
The attacker's former coach at Buducnost, Milan Milinkovic, told La Stampa: "I saw it too, it was a great goal. But anyone who knows him should know that he has a fantastic shot.
"It's true that it was tough (adapting), he had a lot of problems due to injuries. But he reached the top level very early, he probably needed time to adapt.
"And if Juventus decided to keep him instead of sending him out on loan, it's because they believe in him."
Regarding the comparisons that are now being thrown around, he explains that he's still convinced, as he's said in the past, that he sees in Adzic a fusion of Vladimir Jugovic and Jude Bellingham: "Am I still sure? Yes. Time will tell if I'm right or not."