El Clasico next week will be an important point for Barcelona if they are able to come out victorious because this match will separate the points between the two teams. Barcelona have the upper hand this season because they are stronger in the Laliga and that will make it difficult for real madrid in the upcoming El Clasico match. if Real Madrid loses then the point gap will be 12 points that makes Barcelona the frontrunner to win the Laliga Trophy this season. But several cases have occurred in Barcelona, such as corruption, which has recently been trending on social media. I hope this news does not interfere with their performance in this important match.
A main task for Barcelona to avoid loss in the coming El Classico. With a gap they have against Real Madrid, they don't have to win it. Having a draw and maintaining the gap is good for Barcelona. They also must avoid unnecessary injuries or suspensions by cards from the El Classico as it can impact their performance weeks later.
9 points are too good for Barcelona already and if they end the El Classico with same 9 point gap, they are moving closely to the title.
Real Madrid will first focus their strength for the match against liverpool because it's an important match for Real Madrid. After that they will face Barcelona, I don't think there are any injured players before El Clasico starts.
Real Madrid have a tougher task than Barcelona. They must win the El Classico as it is one of their biggest last hopes to reduce the gap with Barcelona. If they succeed, the gap will become 6 points that can give them more hope for a comeback in later of season. If they fail, it's their time to forget La Liga and totally focus on Champions League.