Manchester United are desperate to beat Real Madrid to the signing of Napoli centre-back Kalidou Koulibaly, and reports in Italy claim they have launched a £90m bid which would make him the world's most expensive defender.
The Red Devils have long been linked with Koulibaly, who has established himself as one of the world's best in his position. Former boss Jose Mourinho was thought to be desperately keen to sign the Senegal international, and it appears as though United's interest has remained following Ole Gunnar Solskjaer's arrival.
News of the bid comes from Corriere dello Sport (via The Mirror), who state that United's offer, which was lodged in late March, has yet to be rejected by Napoli.