Midfielder Paul Pogba will not be sold despite interest from a host of European clubs, according to Juventus general director Giuseppe Marotta.
Manchester United are reported to be preparing a £77m bid to bring the 21-year-old Frenchman back to the club.
"Every European club is watching him and been in contact," Marotta said.
"However, we want to have a strong team made up of champions. We have an important player in Pogba and we don't have a need to sell him."
The France international played a key role in helping Juve clinch their third successive Serie A title last season, scoring seven goals and setting up seven more in 36 appearances.
"What was a promising player has become a reality," Marotta added on Sky Italia.
Pogba, who joined Juve from United on a free transfer in 2012 and recently signed a contract extension until June 2019, is also a reported target of Chelsea and Manchester City.
"He is one of the most expensive players on the market," Pogba's agent Mino Raiola told RAI. "Considering his age, he has room for improvement and he is among the best."