Kalidou Koulibaly is a Senegalese professional footballer who plays as a center-back for Al-Hilal in the Saudi Pro League and captains the Senegal national team. Born on June 20, 1991, in France to Senegalese parents, Koulibaly began his career at Metz before moving to Genk and later Napoli, where he became one of the world's top defenders. Known for his strength, aerial ability, and leadership, he joined Chelsea in 2022 before moving to Al-Hilal in 2023. Koulibaly has been instrumental in Senegal's success, including their 2021 Africa Cup of Nations triumph.