Barcelona coach Ernesto Valverde has expressed his belief that his players were not "as far away" from a positive outcome as the scoreline suggested in Sunday's 3-1
"I don't have the feeling that we were as far away from [Real Madrid] as the scoreboard indicates," he said, quoted by Marca.
"They scored three goals, but this was a game in which we played well and had chances.
"I don't believe that we're lacking goalscoring ability, but they were more clinical.
"It was an even game and they had a strong central midfield, which made playing inside difficult.
"We congratulate them and we will try to improve for the next match."
Valverde admitted that Real Madrid are now very much in control of the tie ahead of the second leg at the Bernabeu on Wednesday.
"We have a very unfavourable aggregate score and the opponent is the favourite," he added.
"When you lose you want another game to come along quickly to try to put things right.