Ernesto Valverde has confirmed he will step down as Athletic Bilbao manager at the end of the season, bringing an end to his third spell in charge of the Basque side and closing a defining chapter in the club's modern history.
Real Sociedad will face Atletico Madrid in the Copa del Rey final after securing a tense 1-0 Basque derby victory over Athletic Club at the Reale Arena, completing a 2-0 aggregate triumph.
Real Madrid remain just a point behind Barcelona in the race for the LaLiga title after both sides won at the weekend.
Barcelona delivered a dominant display to defeat Athletic Club 5-0 and secure their place in the Spanish Super Cup final, extending their impressive winning run.
Athletic Bilbao held Champions League holders Paris Saint-Germain to a goalless draw on Wednesday, a result that preserves the Basque side's hopes of securing a playoff berth.
Aymeric Laporte has completed his return to Athletic Club, five years after leaving for Manchester City.