To be honest, Real Madrid was really unlucky during this season because they lost many players and got injured a lot, but they still had good performances. However, they have good enough players to fill the places of these players in the team. Recently, they lost Éder Militão, their Brazilian dancer, which can have a negative effect on this team because this player had a key role in Real Madrid.
In the game against Osasuna, Éder Militão got injured hard which even made Vini Jr very unhappy because he saw Militão's injury as hard enough.
It seems Militão is going to be out for nine months.

Real Madrid has been unlucky with injuries this season, three players were hurt in the previous game against Osasuna, however, Real Madrid won the game, which was important because it was the first time they had beaten their opponents with a score of four goals in La Liga this season. But the worse news was that most of their players would be out for a few weeks, and Militao would likely be absent for the season, forcing Valverde to switch to right back in the last match. I believe Real Madrid is struggling with a situation similar to what Barcelona experienced last season when they had a lot of injured players. But I believe Real Madrid has the funds to sign additional defenders, compared to Barcelona, who is struggling financially.
However, Ancelotti has to be held responsible for all issues that Real Madrid is currently having since, as a manager, you do not have to believe in your young players, if he had used some of his young players, Real Madrid would not have as many injured players as it is. Raúl Asencio, a 21 years old center back, just made his Real Madrid debut against Osasuna and provided assist. In my opinion, he is more impressive than Militao.