After playing a decade in France and some years in North Macedonia, China and Slovakia, Diabate began his career at the African continent in 2021.

[11] In September 2022, Diabate signed a contract for Petro de Luanda in Angola to play in both the Angolan League and BAL.

On 1 November 2023, Diabate made his debut and recorded 13 points and 9 assists in Al Ahly's 86–77 win over FAP.

They reached the finals, in which Diabate scored 20 points but lost to his former team Petro de Luanda, thus missing out on his third championship.

[20] In 2009, he helped the team to a surprise silver medal to qualify for the country's first FIBA World Championship in 24 years.

On 19 June 2015, Diabate was one of 27 players to be named to the Ivory Coast's preliminary squad for the 2015 Africa Championship by head coach Hugues Occansey.