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.
Athletic Bilbao membeli dia saat berumur 17 tahun dengan harga €6 Juta euro pada saat musim panas tahun 2006 dari CA Osasuna padahal ia belum pernah bermain di tim utama klub tersebut.