Barcelona skipper Andres Iniesta was left fuming after their 2-2 draw with Deportivo La Coruna.
Depor scored twice in the final 13 minutes to earn a point for the second time running at Camp Nou.
“It's unexplainable.," Iniesta told Canal+ after the game ended.
“At the end we had even lost control of the game. When we had to find a little bit more, we lost [the control].
“We gave it to our opponents too easily when we had a 2-0 lead.
“These things happen. We have to analyse it and make sure it doesn't happen again.
“It's true that we've now lost points two weeks running, which makes the championship a little tighter.
“Two points have escaped us and we have to analyse that, like I said."