Reports in Spain suggest Villarreal are keen to sign Napoli defender Raul Albiol, with Chelsea also interested.
The Spanish centre-back has spent the last five seasons with the Partenopei, winning the Coppa Italia in 2014.
There is a €6m release clause in his contract, and AS is reporting that Villarreal are prepared to pay that.
Chelsea are also thought to be interested, with incoming Coach Maurizio Sarri pushing to sign Albiol, with whom he worked in Naples.
However, any compensation package for the Coach may include an agreement not to activate the release clauses of any Napoli players.