The details of the release clause inserted into the new contract signed by Athletic Club star Nico Williams on Friday have been revealed online.And they confirm a significant boost for the Basque

Athletic Bilbao says Spain winger Nico Williams has agreed to long-term deal that will keep him at the Basque club through 2035.

“Athletic Club forward Nico Williams has put pen to paper on a 10-year deal keeping him in Bilbao until 30 June 2035,” a statement read. “Nico’s new agreement has an increase in the release clause of more than 50% over the previous one.