Aritz Aduriz has signed a new deal with Atheltic Bilabo, keeping him at the club until June 2019.
The new contract has a release clause of 40m Euros (£35.9m).
Aritz Aduriz, who came out of the Athletic Club youth system, is in his 10th season with the club’s first team and has also played for Mallorca and Valencia.
He has scored 110 goals in 257 league appearances for Athletic, as well as many more in Europe and the King’s Cup and has already netted nine goals in all competitions this season.
A statement on the club’s website read: “Athletic Club and Aritz Aduriz have signed a contract renewal by which the player will remain with the club until 30 June 2019. His cancellation clause will be 40million euros.”