Chelsea have agreed a fee in the region of around €13-15 million ($13.5 - $15.6m) for Strasbourg center-back Mamadou Sarr.

According to a report from RMC Sport journalist Fabrice Hawkins, Chelsea are set to sign Mamadou Sarr (19) from sister club RC Strasbourg Alsace on a long-term contract (although it is not yet known

Chelsea are close to a deal for 19-year-old Mamadou Sarr to join the club from sister side RC Strasbourg this winter as manager Enzo Maresca looks to fix his defence.

Chelsea are set to sign French defender Mamadou Sarr from partner club Strasbourg. The £11.9m deal for the 19-year-old central defender, who has played just 14 times for Strasbourg, is with a view for him to join in the summer.

EXCLUSIVE Chelsea is set to sign talent Mamadou Sarr from Strasbourg Agreement between the player and Chelsea for a long term contract ➡️ Negociation ongoing between the clubs - both own by BlueCo - transfer fee around 20M€. Strasbourg will keep the defender on loan. pic.twitter.com/u9wmtknsRT

Signing Mamadou Sarr for a Bright FutureChelsea’s proactive approach in the transfer market continues as they reportedly secure their first signing for the January

Chelsea are ready to bid again for Marc Guehi despite striking an agreement for Mamadou Sarr on Monday, according to a report. The Blues are busier this month than initially anticipated. Injuries to Benoit Badiashile and Wesley Fofana,

Chelsea are closing in on a deal worth around £12million to sign 19-year-old defender Mamadou Sarr from Strasbourg. Strasbourg are owned by BlueCo, the parent company of Chelsea, and Sarr will move to Stamford Bridge in the summer.