efe-epaBilbao/San Sebastián

Real Sociedad and Athletic Bilbao have become the heroes of the Copa del Rey after eliminating Real Madrid and Barcelona in the quarterfinals and will face off on Sunday in a classic Basque derby.

It is one of the derbies that has raised most expectations in the capital of Gipuzkoa in recent seasons, with both teams at the top of the LaLiga table separated by just three points.