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

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. It represents the first permanent transfer into Stamford Bridge from Strasbourg, clubs owned by Todd Boehly and Clearlake Capital under the BlueCo umbrella.

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 have agreed to sign Mamadou Sarr from BlueCo group club Strasbourg for next season (2025/26 campaign). This was disclosed by football transfer expert Fabrizio Romano in a tweet via his X account on Monday.

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

As reported by RMC Sport, Chelsea are set to complete the transfer of Mamadou Sarr (19) from partner club RC Strasbourg Alsace. L’Équipe have now provided more details of the impending

Cheslea are set to sign Mamadou Sarr from sister club Strasbourg this January with the Blues set to send the defender back on loan to the French side.