Juventus have been told by Sassuolo owner Giorgio Squinzi that they 'must pay' if they want to re-sign striker Simone Zaza.
The 23-year-old forward was previously owned by both clubs before the Italian was bought outright by Sassuolo earlier this summer.
"If the Bianconeri want him, in January they can get their wallets out and buy him," Squinzi said, according to Sky Sports News.
Juventus have already been linked with an alleged move to bring Zaza back to the Old Lady, with the Serie A champions preparing to make a move next year.