Barcelona coach Pep Guardiola offered no excuses after defeat at Osasuna.
Guardiola knows their latest slip gifts Real a massive advantage in the title race.
"Distancing ourselves from Madrid is painful ... the reality is that we were already at an important distance and I imagine it will increase [tomorrow].
"We have to keep on going until the end," said Guardiola, "we don't really have many perspectives to work from, we can only play the next game as best we can to do well."