Jon Rojo scored the winner at the end of extra time. The result ends Espanyol's campaign in this edition and sends Sestao into the next round.
The Basque side responded to two Espanyol leads: the visitors opened the scoring and went ahead again during extra time. Sestao equalised once more before the decisive goal.
The home victory is an upset given the three-level gap between the teams. Qualification was settled on the pitch; the consulted sources do not establish any decided consequences for the future of Espanyol's coach.