Barcelona coach Ronald Koeman says he's "responsible" after defeat to Atletico Madrid.
Barcelona lost 1-0 away to Atletico Madrid on Saturday night, with Marc-Andre ter Stegen making a rare mistake which allowed Yannick Carrasco to score.
Barcelona have picked up just 11 points from a possible 24, which Koeman accepts is not good enough.
"Like any coach I am responsible," he recognised. "We know that we have to improve the results and we have to trust the players I have.
"We must improve in attack and defence. We know that we need to go on a run of winning matches."
