Chelsea head coach Liam Rosenior believes Mamadou Sarr has the potential to become a world-class defender after the French-born centre-back re-joined the club from Strasbourg.
Chelsea's new centre-back Mamadou Sarr has been spotted in first-team training at Cobham ahead of Saturday's Premier League trip to Wolves.
In the 23rd minute in the semifinal, Senegal defender Mamadou Sarr came from the bench to replace the injured captain Kalidou Koulibaly during their 1-0 win over Egypt in the Africa Cup of Nations (AFCON) semifinal in Tangier.
Strasbourg's on-loan defender Mamadou Sarr has chosen to represent Senegal at international level despite having represented multiple France youth teams.