Athletic Bilbao Born in
Abadiño,
Biscay,
Lezama youth graduate Ustaritz made his debut with
Athletic Bilbao's first team during the
2005–06 season, taking part in 17
La Liga matches. However, he featured irregularly in the subsequent years, being mainly restricted to appearances in the
Copa del Rey and the
UEFA Cup; in the
2007–08 campaign he played a career-best 20 games, but the
Basques could only finish in 11th position. From
2008 to
2011, Ustaritz totalled 36 league games, scoring his only competitive goal for the club on 29 November 2009 in a 4–1 away win against
UD Almería. Ustaritz's contract with Athletic was terminated by mutual consent on 31 August 2012.
Dinamo Tbilisi In February 2013, the 30-year-old Ustaritz moved abroad for the first time, signing with
FC Dinamo Tbilisi in
Georgia and sharing teams with several compatriots. He played six
Premier League games until the end of
the season as his team won the national championship, scoring in a 6–1 victory over
FC Zestaponi in the last fixture on 18 May. Four days later, a
double was secured with a 3–1 defeat of
FC Chikhura Sachkhere in the
Georgian Cup final, with the player being
dismissed late on. Ustaritz recorded two goals in four matches in Dinamo's
third-qualifying round run in the
UEFA Champions League in the summer,
heading home from
assists by his compatriot
Xisco Muñoz.
Later career On 30 January 2014, Ustaritz returned to the
Iberian Peninsula, signing an eighteen-month deal at
Primeira Liga club
F.C. Arouca. Roughly one year later, after only two appearances, he switched to another side in the same division,
F.C. Penafiel. ==Honours==