Barcelona midfielder Sergio Busquets says defeat to Cadiz was due to individual errors.
The Catalans lost 2-1 at Cadiz on Saturday, largely due to yet more catastrophic defending, which left Busquets feeling as frustrated as his coach Ronald Koeman, who also questioned his players' attitudes.
"Individual errors have cost us a lot of points," Busquets said after the game. "The team are different in the Champions League.
"In the last few games, mistakes have defined the match and it becomes more difficult.
"We cannot blame attitude or commitment, but starting like this makes things difficult."
Barcelona haven't had a good start to the 2020/21 campaign, and the midfielder admitted concerns.
"It's worrisome to suffer so many defeats," Busquets said. "The more points we drop, the further we'll fall from the top positions, which are where we aim to be.
"We reacted today, but when we concede two goals it's harder. When it seemed that we had a chance, we made another mistake and complicated things."