Riyad Mahrez could be worth £100million in the summer, according to Leicester boss Claude Puel.
The Foxes do not want to sell the winger amid further speculation about his future this month.
Mahrez asked to leave Leicester in the summer but only Roma made firm offers, their final bid rising to £32million.
Virgil van Dyke, who Puel worked with at Southampton, joined Liverpool for £75million earlier this month while Philippe Coutinho left Anfield to join Barcelona for a potential fee of £144m.