Real Sociedad
The nicknames of this club are Erreala or La Real and also Txuri-urdinak (white and blue). The club colours are of course white and blue. The predominantly white jerseys have blue vertical stripes. They play at home in the Anoeta Stadium, which underwent renovations in 2017, whereupon it has a capacity of 26,800 seats. In 2019, the capacity is increased to 42,300 seats.
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Athletic Bilbao
The club's nicknames are Rojiblancos (Red and White) and Los Leones (The Lions). The club colours are of course red and white, which dominate both the home jersey and the emblem. Their home is the San Mamés stadium, a modern sanctuary built in 2013 that holds 53,289 people. It replaced the original stadium of the same name on the same site.
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