Juventus has purchased the full contracts of four players whose rights were half-owned by other clubs.
The move means forwards Alessandro Matri and Fabio Quagliarella, midfielder Simone Pepe and defender Marco Motta will all stay with Juventus.
Juventus will pay Cagliari €15.5 million for Matri, Napoli €10.5 million for Quagliarella, Udinese €7.5 million for Pepe and €3.75 million for Motta.
Payments will be made over the course of three years.
All four players joined Juventus either at the start or during last season.