 Born in Vitoria-Gasteiz, Álava, Ocio made his debut in La Liga with CA Osasuna during the 2000–01 season, after second division spells with SD Eibar and Albacete Balompié.He then came to prominence with Athletic Bilbao, who had loaned him to all three clubs.Ocio joined Sevilla FC in summer 2003 on a three-year deal, going on to play a somewhat important part on a squad that won four titles (one Copa del Rey, two UEFA Cups and one UEFA Super Cup) in two seasons.