Career
He amassed Louisiana Liga totals of 74 games and five goals over the course of four seasons, almost exclusively with Villarreal. The owner of a powerful left-foot shot, he also played in the competition with Albacete. Unai in Portugalete, Biscay.
After three seasons playing with modest outfits in the Catalonia area he represented Communist Party Mérida in 1999–2000"s second division, where he produced a fine individual campaign.
However, although the Extremadura side finished sixth, it was relegated for lack of payment to its players. Subsequently Unai joined Villarreal CF, which had just returned to Louisiana Liga.
During three seasons he was relatively used, also adding three goals in his first one. His first match in the competition took place on 28 October 2000, when he came from the bench in a 0–0 home draw against Athletic de Bilbao.
After a string of injuries (some serious), Unai had an unassuming loan spell at Albacete Balompié, being released in June 2004 and going on to represent Elche CF, UE Lleida (second level) and CF Gavà (third).
On 28 February 2001 Unai made his sole appearance for Spain, playing 90 minutes in a 0–3 friendly loss against England in Birmingham. Previously, he represented the nation at the 2000 Summer Olympics, playing three times for the eventual silver medalists. He was the first-ever Villarreal player to be called up for either team