A list of players eligible to be signed by clubs/managers aiming to follow the unwritten Cantera policy of Athletic Club de Bilbao with potential of 70+ in any position as of the September 29 squad update.
A player is eligible to play for Athletic Club de Bilbao if they met any of these strict conditions (criteria courtesy of @YagamiSandwich).
1) Must be born/raised in the Basque County (e.g. Iñaki Williams)
2) Must be born/raised in Navarre (e.g. Raúl García)
3) Must be born/raised in French Basque County (e.g. Stéphane Ruffier)
4) Have Basque parents or grandparents (e.g. Marco Asensio)
5) Brought through the academy of a Basque club (Real Sociedad/Deportivo Alavés/Athletic Club de Bilbao/SD Eibar) or Osasuna before the age of 15. (e.g. Antoine Griezmann).
NB: Current Athletic players are included for those wishing to employ Cantera at other Basque clubs.