The Catalan club were rebuffed by Athletic Club last summer and had to compete with Bayern Munich for the winger.

“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.

The transfer of Nico Williams from Athletic to Barcelona did not go through because the player demanded a clause in the contract allowing him to leave if registration was not possible, which the Catalan club refused,