Complex sentence: Born in Elgoibar, Gipuzkoa, Etxeberria began his career with Real Sociedad, making his La Liga debut at only 17 in a 2--0 home win against RCD Español, on 29 January 1995.
Split into simpler sentences: Born in Elgoibar, Gipuzkoa, Etxeberria began his career with Real Sociedad. He made his La Liga debut at only 17, in a 2--0 home win against RCD Español on 29 January 1995.