Juventus president Andrea Agnelli has provided a glimmer of hope for Manchester City and other clubs interested that Paul Pogba is not a certainty to remain with the Italian champions next season.
The Turin giants already turned down a reported 80million euros offer from Barcelona for Pogba last week.
Reports in England claim Manchester City have made a 100million euros bid to Juve for the French international midfielder, who is also a reported target of Paris St Germain and Barcelona.
When asked if Pogba was not on the market, Agnelli said to Turin sports newspaper Tuttosport: "In football everything is possible.
"I remember that some years ago we wanted to keep (Christian) Vieri at Juventus.
"The player was considered non-transferable but a few days later, Vieri was sold to Atletico Madrid.
"Hence, my players are non-transferable from September 1st."
Pogba, 22, helped Juve win a domestic double - Serie A and Coppa Italia - this past season and the club reached the Champions League final for the first time since 2003.
The Frenchman has been a bit hit since arriving at Juve from Manchester United in 2012 as a free agent.
Pogba, who was voted the Best Young Player at last year's World Cup in Brazil, is under contract with Juve until June 2019.
Source: PA
