Both teams qualified for the 2020 Copa del Rey Final, the first ever Basque derby showdown (disregarding the mini-league involving Athletic and Vasconia in 1910). Originally scheduled for 18 April, the fixture was postponed due to the escalating COVID-19 pandemic in Spain which had led to other matches being cancelled or played in an empty stadium, something the clubs wished to avoid, particularly given the significance of the match. It was eventually played – in an empty stadium – 350 days after its original date, on 3 April 2021. In a tense match featuring several players with ties to the opposition, and which produced many fouls and few chances, Mikel Oyarzabal scored the only goal – from a penalty – to give Real Sociedad a historic victory and their first major trophy since 1987.