Juventus chiefs are wary of Barcelona midfielder Frenkie de Jong's friendship with Mathhijs de Ligt.
Both players left Ajax last summer, with De Jong leaving for Barca and De Ligt choosing Juve - despite a firm offer from the Catalans.
Calciomercato.com says De Jong has been talking up Barca and life in Spain to his close friend during the season in an effort to convince him about a move to the LaLiga giants.
Juve chiefs are aware of this and have told Barca both they and De Jong can forget about tempting De Ligt away.
The two clubs are currently in multi-player swap talks ahead of the summer market.