Barcelona B conceded two late goals in the final 10 minutes as they lost 3-2 to Deportivo Lugo in the Segunda Division.
The Blaugrana second string fielded young prospect Adama Traore in attack at the Anxo Carro, but it was the hosts who started on the front foot.
Lugo took the lead on 18 minutes when defender Israel Puerto received the ball in an advanced area before firing past Barca keeper Adrian Ortola.
The visitors managed to hit back just before the break when Sandro Ramirez latched onto Alex Grimaldo's pass in the penalty area before slotting his effort past a helpless Dani Mallo for his fifth goal of the season.
The Catalan side then edged ahead on 65 minutes thanks to Juan Camara's strike and looked to be heading for victory.
However, Barca let their lead slip when Pablo Caballero scored seven minutes from time to level the scores.
Lugo's late comeback was completed when Luis Fernandez Teijeiro scored in the dying moments to condemn Barca to a defeat which leaves them in the bottom three of the table.
