Barça B are returning from Teruel empty handed following a 1-0 defeat in which a 41st minute goal from Dieste was all that split two tightly matched sides.
Barça did manage to get on the front foot in the second half, but their attacking dynamic was outsmarted by some solid home defending and there was no further score.
Although Jokin Ezkieta was outstanding in the Barça goal, there was nothing he could do to prevent rival striker Dieste from thumping home a rebound for the only goal of the game.
Carles Pérez, Mujica and Ballou all had chances to equalise but Garcia Pimienta and his side will remain on 16 points after the first 12 games of the Division 2B campaign.
Next Saturday it’s back to the Miniestadi to entertain close neighbours Cornellà.