That injury list is like a joke. Real Madrid is really unlucky with injuries for a long time. 
They had the same problem in the previous season as well. That's why Ancelotti should have signed an extra defender this summer.
He just said that he was satisfied with the number of options he had in the area. I wonder what he is thinking about this now. I assume Carvajal will be Rüdiger's mate there temporarily. I hope this temporary time won't be too long. Otherwise I think Real Madrid would have even bigger problems in the Champions League. Even against smaller teams I mean. Teams with good counter-attack skills can catch them off their guard.
This storm of injuries is beyond prediction, Real Madrid lost most of its defenders, Ancelotti is certainly very dizzy with this situation. They had the same problem in the previous season as well. That's why Ancelotti should have signed an extra defender this summer.He just said that he was satisfied with the number of options he had in the area. I wonder what he is thinking about this now. I assume Carvajal will be Rüdiger's mate there temporarily. I hope this temporary time won't be too long. Otherwise I think Real Madrid would have even bigger problems in the Champions League. Even against smaller teams I mean. Teams with good counter-attack skills can catch them off their guard.
1. David Alaba
2. Dani Ceballos
3. Jude Bellingham
4. Eduardo Camavinga
5. Jesus Vallejo
6. Aurelien Tchouameni
7. Eder Militao
8. Ferland Mendy
With different recovery periods, the absence of a number of these players has the potential to disrupt Real Madrid's performance in the future, on the one hand this looks very worrying.
Source: - https://www.transfermarkt.com/real-madrid/sperrenundverletzungen/verein/418
- https://www.espn.com/soccer/story/_/id/41138323/real-madrid-militao-brazil-camp-injury