On 30 January 2024, Sako joined Russian Premier League club Rostov on loan.[4] On 26 June 2024, Rostov made the transfer permanent and signed a three-year contract with Sako.[5]
In May 2024, Sako's club Rostov announced that he has been called up to the Niger national team.[7] Sako made his debut for Niger on 9 September 2024 in a Africa Cup of Nations qualifier against Ghana at the Berkane Municipal Stadium in Morocco and scored the equalizing goal in a 1–1 draw.[8] He scored a late winner for Niger in the away 2–1 victory over Ghana in the same qualification on 18 November 2024, even though Niger failed to advance from the qualification group.[9]
Career statistics
As of match played 7 December 2024
Appearances and goals by club, season and competition