Barcelona target Camilo Zuniga is said to have a clause in his Napoli contract that means he can join La Blaugrana for a cut price.
Mundo Deportivo cites reports elsewhere that claim Zuniga’s contract states he can leave Napoli for €30m, but only €15m if Barca are the bidding club.
A potential swap deal between Barca and Napoli has been mooted, with Zuniga heading to Camp Nou and Javier Mascherano or Alex Song going in the other direction.
Zuniga has been considered as a long-term replacement for Dani Alves, it is claimed.