 On 28 November, Cléo scored a goal against his former club to help Partizan beat Red Star 2–1.He appeared regularly in the second part of the 2009–10 Serbian SuperLiga, adding nine goals in 14 games, and helped Partizan clinch their third consecutive title.In total, Cléo was the club's top scorer with 22 goals in all competitions, one more than Senegalese striker Lamine Diarra, who left the club at the end of the season.