Pep Guardiola admits it will be difficult for Barcelona to catch Real Madrid despite his side moving to within four points of the La Liga leaders at the weekend.
The Catalans won 4-1 at Real Zaragoza on Saturday while Jose Mourinho’s side were held to a frustrating goalless draw by Valencia at the Bernabeu.
Real, who were ten points clear in March, have now drawn three of their last five league games and still have to travel to the Nou Camp on April 21.
But despite closing to within striking distance of their arch rivals, Guardiola has played down his side's title hopes.
"They can drop points, but we cannot,” he said. “It's a lot more difficult now than when we were behind by 10 points.
“It appears as though we already have the title, but four points is a lot against this Madrid. There's a lot of work to do.
“No team in the history of the league have fought back to overturn a 10-point lead against Madrid.”
He added: “The three points against Madrid are by no means won. Madrid are coming and we're aware that we can lose the three points."
The Barca manager is sweating on the fitness of defenders Gerard Pique and Dani Alves ahead of Tuesday’s visit of Getafe.
“They are both doubtful,” the 41-year-old revealed. “At this moment they are not match fit."
Victory at the Nou Camp will reduce the deficit at the top to one point, if only for 24 hours, with Madrid facing a difficult trip to local rivals Atletico on Wednesday.