 He made his SC Freiburg first team debut on 28 January 2006, coming on as a substitute for Ibrahim Tanko in the 67th minutes, in a 1–0 win over Dynamo Dresden.In a 2–1 win over 1860 Munich on 27 February 2006, Matmour set up a goal for Aleksandre Iashvili, who scored twice for the side.It wasn't until on 3 May 2006 when he scored his first goals, in a 2–1 win over Hansa Rostock.