The young goalkeeper was the talk of Italian football on Sunday after an amazing save to deny Arek Milik in their 0-0 draw with Napoli.
Bonucci said: "For us it was an important point yesterday and I celebrated Gigio's save as if he had scored a goal, because in fact it was worth a goal.
"I was with the best in football history (Gigi Buffon at Juventus) and now I play with Gigio who can become one of the strongest, he has to stay calm, do not feel the pressure because only this way he can grow.
"More amazed by the scissor kick of (Cristiano) Ronaldo or the Donnarumma save? Two great technical gestures."