Cagliari ace in demand
Top Saints target Davide Astori is also wanted by new Napoli boss Rafa Benitez this summer as interest grows in the Cagliari defender.
The 26-year-old is believed to be among Southampton boss Mauricio Pochettino's off-season wish-list but he looks like having fairly formidable competition in the shape of Napoli.
The centre-back nearly arrived at St Mary's in January but the move did not materialise with Norwegian Vegard Forren snapped up as additional cover instead.
However, fresh reports in Italy say Southampton are once again keen on signing Astori although his desire to make the switch to the Premier League could be tested if Napoli, who last month appointed former Liverpool and Chelsea interim boss Benitez as boss, also come in for him.
Saints have also been linked with Lyon central defender Dejan Lovren, 23, who is valued at around Â£12m, as another option if they do not manage to land Astori.