Barcelona are the latest club to have set their sights on Napoli defender Kalidou Koulibaly after Chelsea, Arsenal, Manchester City and Liverpool.
The Senegal international is valued at around €60m after several years of strong performances in Serie A and the Champions League.
According to Il Mattino newspaper and Spanish site Fichajes,net, Barcelona are making preparations for a summer offer.
Coach Maurizio Sarri is determined to keep hold of the 26-year-old, and President Aurelio De Laurentiis already resisted proposals from the likes of Chelsea and Manchester City.
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