Sandoval said: "The match did not turn out as we thought. We're a little bummed because the entire week's work hasn't shown up yet. In the first half we made Cdiz feel uncomfortable, but then they confused us.
"When the team was a little better the goal came and that blow changed the course of the game for us, we had to make changes to try to win because it was the only thing that was useful for us.
"We had very little margin for error and today's mistake penalises us a lot. It depends on Thursday's game, if the result is positive we can be given that little boost. There are direct confrontations, the League is very difficult for everyone.
"We have to be entrenched and do things better than today if we want to add, and if we don't add it is impossible."