sentences:  Athletic Bilbao signed him as a raw 17-year-old for €6 million in the summer of 2006, from fellow La Liga club CA Osasuna, despite him never having played a game with the first team; he had scored three goals in 32 appearances for the reserve team.Martínez soon became a regular in his debut season with powerful displays, his highlight being scoring twice against Deportivo de La Coruña in a 2–0 away success on 16 December 2006, and finished with 35 games and three goals.He was ever-present again over the following two years, helping Athletic to the final of the Copa del Rey in 2009.