 Kuzmanović played in four cup games and scored a goal in the semi-final against Zürich.In early 2007, Serbian FA began talks with him about the possibility of playing for the Serbian national team and he accepted the call up to the squad against Kazakhstan and Portugal in March 2007.He scored his first two goals for Serbia in the away game versus Belgium, but they weren't enough to get a point, since Serbia lost 3–2.