Unai Expósito Medina (born 23 January 1980) is a Spanish former footballer who played as a right back.
He appeared in Segunda División 149 games during six seasons (five goals), representing in the competition Numancia (two spells), Hércules and Cartagena.
Born in Barakaldo, Biscay, Expósito graduated from Lezama, Athletic Bilbao's renowned youth academy, and made his debut for the first team during the 1999–2000 campaign while also appearing for the reserve side.
From 2003 to 2005, after a season-long loan with CD Numancia in the second division,[1] he represented neighbours CA Osasuna also in La Liga.
In 2005, Expósito returned to Athletic as a full member of the main squad but, after making just three appearances in 2007–08, he signed for Hércules CF in the second level.