The Turin side's general director has admitted an offer has come in for the defender but has turned it down and insisted that the club have no intention of selling the 24-year-old
It is thought that the Russian side's coach Luciano Spalletti is keen to link up with his compatriot, with earlier reports suggesting that an €8 million bid for the 24-year-old had been lined up
"Bonucci? We received an offer from Zenit, but we don't want to sell him as he's a young player in whom we trust," Marotta was quoted as saying on the club's official website.
Marotta also discussed the possible departures of Frederik Sorensen and Alexander Manninger, though pointed out that there's nothing official yet regarding the duo's future.
"Talking about sales, we haven't yet managed to define Sorensen and Manninger's situations. Maybe in a few days we can come to fruition but for now there is nothing at hand.
"For all other players, we can only say that we have great respect for those who are here and we would possibly consider proposing incentives for those who can't find a club to go to."
Juventus have already parted company with players such as Hasan Salihamidzic, Felipe Melo, Mohamed Sissoko and Tiago Mendes this summer.