Juve have been linked with a January move for the Croatia international.
But representative Mario Mamic told TMW: "Juventus? He still has a five-year contract with Tottenham and intends to keep to it.
"Has the Bianconeri and other Italian clubs expressed an interest anyway? No, because all clubs, both Italian and other European countries, they know what the policy of Tottenham is with their players and how well he and (Luka) Modric are regarded."