On 13 March 2009 Matavž scored his first goal in the Eredivisie in a 2–0 victory over Roda. Soon he began scoring for Groningen on regular basis in all competitions.
On March 13, 2009, Matavž netted his inaugural goal in the Eredivisie against Roda with a score of 2–0. Subsequently, he began scoring frequently for Groningen in every competition.