Athletic are at it again.
The massive payout the club have received on Chelsea-bound goalkeeper Kepa Arrizabalaga is just the latest success story of a team policy that has paid dividends for the Basque club over the last decade.
Athletic's Basque-only rule when it comes to player recruitment means that the side work with a built-in handicap compared to their Liga rivals, who trawl the world for top talent and are not afraid to pay top dollar for the privilege.
That disadvantage ensures that when the Basques do find a star, they hold on to him for all his worth and refuse to sell unless a team is prepared to meet a hefty release clause.