Roura said that the important thing now is to respond positively with a win over Sevilla.
"We have to move on and focus on Sevilla," Marca quotes Roura as saying. "When you have a result that is not favourable, the sooner you win again is better. I'm convinced that my players can respond.
"The players are down, which is normal after defeat. We have lost before and by the end of the season will have lost again, so the important thing is the response.
"We always know we step up and react, and in the coming games we will do."
Barcelona are 12 points clear at the top of La Liga.