Igor Zubeldia lifted the ball to a forgotten Alexander Isak who, from a few meters away, was able to place 4-2 in the match which later ended 4-3.
it was Isaac's fourth goal in the league.
Isak also scored two goals in the cup this week and saved Sociedad's points against Barcelona in the last La Liga round. Third game in a row that Isaac scores.
Real Sociedad tear started the game and scored three goals in the course of 13 minutes. After two straight goals from the home team, it became a match of it, before the Swede decided.