Roma have told interested clubs that they will have to stump up €45m to sign defender Kostas Manolas this summer, Goal understands.
The Greek centre back has been courted by Premier League giants Arsenal, Chelsea and Manchester United over the past few weeks although none of whom have yet to lodge an official bid for the highly rated 24-year-old.
Manolas, who replaced Medhi Benatia at the Stadio Olimpico after joining from Olympiacos last season, impressed with a series of confident performances in defence for Luciano Spalletti's men both domestically and in the Champions League.
With defender Antonio Rudiger currently on the treatment table after tearing cruciate ligaments in his right knee, Roma's director of football Walter Sabatini has informed clubs interested in Manolas that they will have to stump up at least €45m to sign him.
It means the likes of Arsenal and Chelsea will be forced to turn their attentions to other targets including Kalidou Koulibaly, who has been heavily linked with Antonio Conte's men throughout the summer transfer window.
Goal understands that a clause exists in Manolas' contract which means Roma will come to owe 50% of his future transfer fee to Olympiacos, although that clause in question is negotiable and the Greek champions are likely to be forced to settle for a much lower figure.
Manolas has spent much of the summer on holiday in Greece but is said to be relaxed ahead of the new season where he looks set to become Roma's main defensive lynchpin alongsidenew signings Nacho and Juan Jesus.