Aritz Aduriz signs contract extension with Athletic Bilbao until 2017

BILBAO, SPAIN - SEPTEMBER 13: Aritz Aduriz of Athletic Club Bilbao celebrates after scoring during the La Liga match between Athletic Club and Getafe CF at San Mames Stadium on September 13, 2015 in Bilbao, Spain. (Photo by Juan Manuel Serrano Arce/Getty Images)

BILBAO, Spain --

Athletic Bilbao says striker Aritz Aduriz has agreed to extend his contract until the end of the 2016-17 season.

The 34-year-old striker's contract was due to expire at the end of this season.

Aduriz has been Bilbao's top scorer for the past three seasons after replacing Fernando Llorente in the Basque side's attack.

Aduriz leads his team with four goals in seven Spanish league matches so far this season.