Johan Cruyff has warned Barcelona they risk Champions League defeat at home to Inter Milan tonight.
The Barca legend has concerns over the number of individual errors the players have been making this season.
Writing in his weekly column for El Periodico, Cruyff said: "The question is not whether Messi will play or not. Nor whether Ibrahimovic will play or not. If one of them plays, then that's good. If both of them play, then that's perfect.
"If they play or not, the issue is still the same; the result depends on us, with or without Messi, with or without Ibra.
"We can do things better than in Kazan, Pamplona and Bilbao. In each of those games the opponents were similar as were the errors committed before them.
"The scenarios in which Barcelona ended up drawing were all similar. They were big mistakes. For example, allowing your goalkeeper to kick long. Is there anyone shorter at Barca than Pedro, Messi and Iniesta? The little ones are at their best with the ball at their feet not fighting for it up there."