Nicolas Alexis Julio N'Koulou N'Doubena commonly referred to as Nicolas N'Koulou, is a Cameroonian footballer currently playing for Marseille. N'Koulou began his career at Kadji Sports Academy in Douala.. In late 2007, it was announced that he was acquired by the principality-based side AS Monaco FC. He agreed to a three-year professional contract. He spent the latter portion of the 2007–08 season playing with Monaco's CFA squad, before joining the squad for preseason in July 2008. He made his professional debut on 13 September 2008 in a 2–0 victory over FC Lorient starting the match before being substituted in the 65th minute. His performances with Monaco have led to him being scouted by several prominent European clubs. On 29 June 2011, N'Koulou passed his medical and signed for four years with Marseille. N'Koulou was included in the Cameroon U-23 squad that participated in the 2008 Summer Olympics. He even helped the squad reach the knockout round.