Barca were beaten in extra-time.
Spanish media reacts to Barcelona's 4-0 loss against Real Madrid
History of the Copa del Rey
Alaves look to revive past glories in Copa del Rey - Eurosport
Athletic Club Refuse to Wear New Copa del Rey Winners Patch, Claim They've Won 24 Instead of 23 - Footy Headlines
Barcelona knocked out of Cup as Athletic hit extra-time double
Athletic Bilbao ease into Copa del Rey final with victory over Atletico Madrid
Gareth Bale's wonder goal and Barcelona on the receiving end of a fine comeback top five Copa del Rey moments, Football News
Real Betis Rayo Vallecano Valencia Athletic Bilbao Copa del Rey
Athletic Bilbao give Barcelona more Copa del Rey heartache
Three stats from Real Madrid's 3-1 Copa del Rey derby win over Atlético Madrid - Managing Madrid
Bilbao, Basque Country, Spain. 20th Jan, 2022. FERRAN TORRES (19) of FC Barcelona celebrating during the 1/8 Copa del Rey match between Athletic Club and FC Barcelona at San Mames stadium, in
Own-goal gives Barca the advantage in Copa Cla