Olympique Marseille have set their price for Andre Zambo-Anguissa.
The young midfielder has attracted interest from Chelsea and contact has been made with Marseille.
Foot Mercato says OM are prepared to sell the 22 year-old for €20m.
Zambo-Anguissa is tied to OM until 2021 and enjoyed an impressive campaign last season, making 37 appearances in Ligue 1, with 26 starts.