 Diawara was dropped from the Senegal squad in August 2006, ahead of their friendly with Ivory Coast, due to a breach of discipline.In July 2009, he signed a four-year contract with Olympique de Marseille, with the transfer fee estimated at €7 million.On 8 August, he participated in his first game for his new club against Grenoble, which Marseille won 2–0.