Barcelona are interested in signing Napoli centre-back Kalidou Koulibaly, 30, and will try to lower the Italian club's 30-35m euro (£25.5m-£29.7m) asking price by offering Bosnia midfielder Miralem Pjanic, 32, as part of any deal.

Juventus are eager to re-sign Miralem Pjanic, 31, a year after selling him to Barca - and the Spanish giants are willing to let the Bosnia midfielder leave for free.

Miralem Pjanic is being linked with a move to Tottenham, who are set to beat long-time admirers Manchester United to his signature.

Chelsea are considering a move for Barcelona midfielder Miralem Pjanic, but would face competition from Juventus and Paris Saint-Germain for the 31-year-old Bosnia and Herzegovina international.

Barcelona's Bosnian midfielder Miralem Pjanic, 31, wants to return to Juventus.