The Chile international has been linked with a number of European top clubs but his current team are determined to keep him in Turin
The Chile international has supposedly caught the attention of clubs such as Real Madrid and Manchester City with his good performances in Serie A and the Bianconeri have received a number of enquiries about the players's availability.
Nevertheless, Marotta has stressed that the reigning Italian champions are not a selling club.
"We have received a number of requests from big clubs for Vidal," he told Sky Sport Italia.
"We are not a selling club, though. We want to improve and achieve something not just in Italy, but abroad as well."
Goal.com revealed in February that Juventus were ready to reject a €30 million bid from Bayern Munich for Vidal, who moved to Turin from Bayer Leverkusen in 2011.