Isak's performance against Real Madrid gave his team the victory. He was the most prominent player on the pitch, becoming a real problem for a weak Real Madrid defence who could not stop his multiple attempts.
"It's unbelievable. We knew that to reach the final we were going to have to face very good teams and we were playing with one of the strongest teams and away from home, so even though in the end we could have lost the match, I think we played a good game and we deserved to win," Isak told 'DAZN'.
The Swedish striker emphasised how big of an opportunity this will be for Real Sociedad, who's objectives for the season was doing well in the Copa del Rey.
"It's been incredible, for the first time in a long time we're back in the semi-finals and we have the chance to do even more. I'm very proud of the team because they've done a great job," concluded Isak.