Villareal are after Juventus' Daniele Rugani as Napoli also plan a new offensive.
The promising 21-year-old is viewed as the perfect replacement for those clubs who are about to sell a major central defender.
Villareal, who will shortly let go of Mateo Musacchio, perhaps to Milan, are believed by the Gazzetta dello Sport to have contacted Juventus and Rugani's agent.
Villareal are after Juventus' Daniele Rugani as Napoli also plan a new offensive.
The promising 21-year-old is viewed as the perfect replacement for those clubs who are about to sell a major central defender.
Villareal, who will shortly let go of Mateo Musacchio, perhaps to Milan, are believed by the Gazzetta dello Sport to have contacted Juventus and Rugani's agent.
Napoli, who tried signing Rugani last year, are also considering returning into the fray, especially if they sell Kalidou Koulibaly to Chelsea for €40m.
The Old Lady so far has shown no interest in selling Rugani, but it remains to be seen what will happen with their own central defenders.
Leonardo Bonucci is intensely sought after by Chelsea, and his departure would terminate all possibilities of a move for Rugani. But it is also rumoured that if the Bianconeri bring in Bayern Munich's Medhi Benatia, then the Italian may be loaned out to Roma.