For now it is actually not too wrong to discuss El Clasico from the beginning with several possibilities that occur but when time is approaching there are still some things that need to be considered because after the league is off the international break Madrid will have 3 matches within 8 days starting from facing Sevilla, Braga in the Champions League and Barcelona in El Clasico and the problem is Barcelona has a fairly minimal break because looking at the schedule they will do because they can only rest 1 to 2 days because they have a schedule of 3 matches within 3 days against Bilbao, Shakhtar and also Madrid.
Obviously the vulnerable time is quite short in resting after this match will create a condition where players will be forced to continue playing and this will actually be very dangerous because in the end fatigue can be one of the triggers for players not to be optimal and even injured.
Therefore, before El Clasico it would be better for Ancelotti and Xavi to think about how the right rotation to face a busy schedule but the players are not burdened and too short because this could hamper their condition in the game.
Real Madrid's next game will be against Sevilla in which they really need to get the full three points from the game because if they fail the ar other teams they can take their place and I think the chance for Real Madrid in this game is much higher but the sad thing for Real Madrid is about this defender David Alaba, He got injured in the same against Las Palma and the other defender in Real Madrid, Éder Militão is also injured and this can be a bit challenging for Anceltti to play against Sevilla but still, they safe option is to bet on Real Madrid for this match.
Losing Militao for a long time due to a muscle injury does have a bit of an effect because it can be said that Madrid is struggling to replace some players even if we realize some of what Madrid did in the previous 2 games against Napoli and Osasuna even Tchouameni was played in the defender position because of the lack of players there due to injuries but looking at the the win against Napoli and the massacre of Osasuna I think it's still possible for Madrid to force it and they can still get 3 points against Sevilla although it's like I said before where rotation is also important because they are currently lacking defenders so this could be a difficult thing for Madrid if they continue to force Rudiger or Tchouameni in defense.