Napoli have reportedly decided that they will only sell Kalidou Koulibaly for a fee of £105m.
Koulibaly has established himself as one of the most highly-regarded defenders in Serie A, with eight goals being scored in 122 appearances across four seasons.
Earlier this week, it was suggested that Arsenal were prepared to offer £53m for the Senegalese international but according to RAI Sport, the Gunners will have to double their bid.
The report says that Napoli have no intention of parting ways with the 26-year-old, which has led to the Italian giants only being open to a world-record approach for a defender.
Manchester United, Chelsea and Real Madrid have also been linked with the player, who still has just over three years remaining on his contract.
