The French midfielder has been heavily linked with Paris Saint-Germain but the Bianconeri director is convinced he will sign a new contract to stay in Turin.
The France starlet has established himself as a pivotal player for the Italian champion since his free transfer from Manchester United in the summer of 2012, with Ligue 1 giant Paris Saint-Germain eager to secure a deal for his signature at the end of the season after watching his development in Serie A.
Pogba himself fanned the flames of speculation by admitting he once dreamed of playing for Barcelona or Arsenal, but Juventus has always maintained the club will not consider selling the 20-year-old - and Marotta has once more underlined the team's determination to keep him in Turin.
"There is nothing more to add," Marotta told Tuttosport when asked of PSG's interest. "We've no intention of selling Pogba. On the contrary, he'll renew his contract."
Pogba's current deal with Juve expires in 2016.