Barcelona coach Xavi says they must now be ready for a huge week ahead.
Barça now face Inter Milan in the Champions League on Wednesday and then travel to Real Madrid in LaLiga on Sunday.
"Now I am preparing for Inter," Xavi said after victory over Celta Vigo. "We have to savour these three points because they are important to keep us top.
"The Clasico is unpredictable. Last year we went into it badly and end up winning 4-0.
"We will try to win and show character like we did last season."