Bilbao owe the victory to that victory to Inaki Williams, who scored the home team’s only goal in the third minute of time out for the second half.
Bilbao has become the last of the semi-finalists, to accompany Granada, Sociedad, and Mirandes, who play in the second division, in the golden box of the competition.
It should be noted that this victory is the second in a row for Bilbao against Barcelona this season, after having previously overcome it with the same result when they met in the Spanish league last August.
Sociedad’s four goals were scored by Norwegian Martin Odegaard with Royal (22), Alexander Issac (54 and 56) and Mikel Merino (68).
As for the hosts’ trilogy, it was marked by Marcelo (59), Rodrigo Silva (82) and Nacho (the third minute of the downtime).
El Merengue’s desire to tie was reinforced during the remaining minutes of time lost after Sociedad was forced to play ten players after his player Andoni Gorosabel was ejected in the fourth minute of time lost to receive the second warning, to attend the last period of great excitement in light of the desire of the royal team to tie, but without Dispo.