Napoli have drawn up a list of defensive targets to bolster their backline ahead of the new season, with Martin Skrtel at number one.
Coach Rafael Benitez wants to reunite with the Liverpool centre-back, according to Il Mattino, and will hope to try and persuade the Slovakia international to join him at San Paolo over the next few weeks.
The Premier League side are reticent to sell the 28-year-old though, meaning the Partenopei could turn their attentions to Feyenoord youngster Bruno Martins Indi.
The 21-year-old has impressed for the Eredivisie side since making his debut in 2010, earning himself nine caps for the Netherlands.
The versatile defender could be available for around €7m.