Xavi believes Barcelona was not creative enough in a 0-0 draw with Atletico Madrid on Saturday.
With Lionel Messi and Neymar starting on the bench, the Catalans struggled to break down a resilient Atletico side which also caused the visitors problems of their own through Diego Costa and Arda Turan.
And though Xavi, 33, insists Gerardo Martino's men were in the ascendancy for the most of the encounter he believes their play was not incisive enough to trouble the hosts.
"Atletico are a very compact team and they work hard physically. We dominated the game, but we didn't create enough chances," he was quoted as saying by AS.
"It was a very intense game. The last 15 or 20 minutes, we were very good but we couldn't score. Atletico are a great team.
"They play a very different style to us, but they do it excellently. They give you very little space in defense.”
The result leaves Barca first on goal difference to Atletico Madrid, giving city rival Real the opportunity to narrow the gap at the top to three points if it beats Espanyol on Sunday.
And Xavi says the title race is now wide open.
"Atletico are very strong and Madrid are always there. The three will be fighting it out until the end," he said.