The 20-year-old was signed Chelsea in the summer from Strasbourg but was loaned back to the Ligue 1 club for the 2025/26 season after making his Blues debut against Esperance at the 2025 FIFA Club World Cup.
Sarr previously captained France's U17s to the European Championships title in 2022 before earning numerous caps at U18, U19 and U20 level for Les Blues.
However, the centre-back has reportedly now opted to play for the Teranga Lions senior national team ahead of the 2025 Africa Cup of Nations and the 2026 FIFA World Cup, which Senegal has qualified for.
He was not named in head coach Pape Thiaw's squad for the upcoming international friendly against Brazil next week but is reportedly an important long-term prospect for the African giants.
Sarr has featured in ten matches in all competitions for Strasbourg this season, with the team in seventh position on the Ligue 1 table.
Mikel Arteta has described Granit Xhaka as "one of the signings of the season" ahead of Arsenal's reunion with their former midfielder when they face Sunderland at the Stadium of Light on Saturday.
Jadon Sancho's struggles deepened on Thursday night as the on-loan Manchester United winger failed to seize his opportunity in Aston Villa's 2-0 victory over Maccabi Tel Aviv.
Oliver Glasner has praised Crystal Palace's fighting spirit but admitted his side "still have plenty to improve" despite a commanding 3-1 home victory over AZ Alkmaar in the UEFA Conference League.
Newcastle United's plans have taken another hit after it was confirmed that Yoane Wissa will remain sidelined for this weekend's Premier League trip to Brentford, extending his wait for a debut with the Magpies.
