The Belgian international endured a frustrating, injury-hit season at White Hart Lane and could be tempted by a switch to Rafael Benitez's side.

Sources close to the Italian side claim the club will offer Macedonia striker Goran Pandev in part-exchange plus cash for Vertonghen.

But it is unclear whether new Tottenham manager Mauricio Pochettino will be willing to let the 27-year-old leave.

Vertonghen, who was named in the 2013 PFA Team of the Year in his debut season in the Premier League, has two years remaining on his contract in north London.