Real Madrid have difficult matches ahead - Sevilla, Borussia and Atletico Madrid. The team is not ready to physically play all three matches. There are many injured players. Real needs to defeat Borussia in order not to depend on the result of the Shakhtar vs Inter match. This is a rather difficult task at the moment ...
The task is difficult, but doable for Real Madrid. The team has character and there is Zidane who knows how to set players up for important matches. I suppose that Real Madrid can sacrifice other matches in order to save energy for the match with Borussia. For Real Madrid, the Champions League will always prioritize other tournaments and matches.