Barcelona midfielder Sergio Busquets has admitted that his side are "a bit worried" after falling four points behind Real Madrid in the La Liga title race.
"We tried. We noticed the fatigue from Wednesday and the ball just didn't want to go in," Busquets told Barca TV.
"We're a bit worried about being four points behind Madrid because it makes things even more difficult, but there's a lot left of the season."
Barca return to action against Huesca in the second leg of their last-32 Copa del Rey tie on Tuesday.