Despite having three years left on his current deal, the player's agent is demanding new terms.
"Our requests are purely linked to the objective value of the player," explained agent Claudio Pasqualin in Tuttosport.
"It should be underlined that he loves Juventus and would have no doubts in naming them as his dream team for the present and the future.
"I always remind him how grateful he should be that destiny saw him grow up in the Juve youth system. The club should keep a tight grip on him."