Inter Milan are determined to keep hold of Joao Cancelo but face difficulties in raising the €35 million required to match the on-loan Valencia defender's buy-out clause.
Goal understands that Juventus are keeping a close eye on proceedings and are ready to swoop if Inter fail to complete a transfer for the 23-year-old.
The deal that Inter have struck means that they must stump up the money for the Portuguese right-back by May 31, which poses them problems as that means it falls under the budget of the current campaign, potentially leaving the door open for the Serie A champions to make a move.
Juve continue to enjoy a strong relationship with Valencia, having previously done business over Simone Zaza and Neto, which could tip the balance of any deal in their favour.
The full-back positions are likely to need refreshing at Juventus Stadium this summer, with Kwadwo Asamoah and Stephan Lichtsteiner set to depart, while Alex Sandro is ready to consider a move if no new deal in Turin is quickly settled.
Manchester City and Paris Saint-Germain are studying the case of the Brazilian, who was wanted by Chelsea last summer.
If Leonardo Spinazzola is set to return from his two-year loan with Atalanta, Juventus also have their eyes set on Manchester United’s Matteo Darmian and Cologne’s Jonas Hector.
Inter, meanwhile, are determined to keep hold of Cancelo, who has played an increasingly large role in their first-team squad this season, starting 10 Serie A matches and playing close to 1000 minutes.