Born in Bamako, Diarra started his career with the youth setup of local club Yeelen Olympique.

In January 2018 he moved to Austrian Bundesliga club FC Red Bull Salzburg, with whom he signed a contract that ran until May 2022.

[5] After recovering from his injury, in August 2019 he played for the first time for the Red Bull Salzburg reserve team, FC Liefering.

[6] After only three appearances for St. Pauli in the 2nd Bundesliga due to injury, his contract with the German club was terminated in January 2020 and he returned to Salzburg.

[9] On 17 April 2021, Diarra made his debut for New York, appearing as a starter in a 2–1 loss to Sporting Kansas City.