Barcelona fullback Daniel Alves insists they'll keep fighting for the title.

Defeat to Osasuna left Barca ten points behind leaders Real Madrid.

Alves said: "We have become accustomed to winning and when we don't win it's strange.

"There will be difficult moments where we must be strong. If we are united we are stronger." He went on to say that, "we'll fight as long as there isn't a mathematical champion in the league, we'll see where we are at the end [of the season]."