Carlos Gurpegi has extended his contract with Athletic Bilbao by a further 12 months, the club have announced.
The 33-year-old has been at Bilbao since 2002 and was handed his debut by Jupp Heynckes in a 5-2 defeat at Villarreal in March of the same year.
Gurpegi was banned for two years in November 2003 after testing positive for nandrolone; the ban was initially suspended but his appeal was ultimately unsuccessful and the sentence was served from July 2006.
However, he returned in April 2008 and has re-established himself as a regular member of Bilbao's starting XI.
A statement on the club's website read: "Athletic Club and Carlos Gurpegi have signed a renewal whereby the player will remain until June 30, 2015."
The defensive midfielder commented: "Playing here is a dream and I am very grateful to the club. Everything has been easy and I am very happy."
Gurpegi has started every game for Ernesto Valverde's outfit this term, making 13 appearances in total to help the club to fifth place.
The 33-year-old will look to continue his ever-present record this season when Bilbao travel to Malaga after the international break.