David Silva believes Manchester City are lucky Barcelona didn't end their Champions League hopes as they fell to a 2-1 first leg defeat on Tuesday.
Luis Suarez returned to England to haunt City with two first-half goals but Manuel Pellegrini's side responded in the second half, pulling a goal back through Sergio Aguero.
However, the Premier League champions were unable to mount a full comeback and had to rely on Joe Hart's penalty save from Lionel Messi to keep the tie alive, something Silva feels gives City a second chance.
He told reporters: "During the first half, we just didn't do good. Barcelona did much better, they were better positioned than us in the field, catching all the balls.
"Since they scored, we were wrong. In the second half the team was able to react, we had chances to tie the match, but the red card diminished us and we couldn't do more."
Asked what troubled City in the first period, he continued: "Our pressure was no good and we were late. Barcelona play very fast and if you don't do well, you have no chance to reach the ball. And we gave them many chances today.
"At the end, it was less than expected, because things could be much worse after the first half we did."
City head to Barcelona on March 18 knowing they must score at least two goals in the Camp Nou but Silva says it is possible if they can perform in a similar manner to their second half showing.
He said: "If we play like during the second half, we'll have options. If we play like during the first half, no.
"Now, we have to think on the Premier League because we have a very difficult match against Liverpool.
"We can give our best version in the second leg yet. We have to work and give our best to achieve our goal."