Of course, they are going to need to work hard to actually stay at the top of the competition. No club is actually going to be able to perform badly and stay at the top. Not even the great Real Madrid. But so far I don't think we actually have got any reason to doubt Real Madrid. They have shown good performance and they also have been able to win against the biggest competitor which is Barcelona. They just need to make sure that the players stay healthy and do not get injured. Especially Jude Bellingham, who has been doing the bulk of the scoring for Real Madrid in this season. he has been the biggest success so far for Real Madrid recently.
In the Champions League, Real Madrid is still confident enough to qualify for the next round as long as its players do not experience bad luck such as injuries, as well as in La Liga, where it is increasingly visible that Real Madrid is on the list of teams that will compete for the championship this season. I also think that Real Madrid will go further in the Champions League this season if they can continue to improve their own performance with the players they currently have and I am also quite confident that Ancelotti's guidance at Real Madrid will continue to get better.
Among several favorite clubs, I think Real Madrid is at the top of the list, and I think this is not the first time. Their journey so far in Group C has been smooth, Napoli, Braga and Union Berlin failed to provide significant resistance, causing Madrid to stumble in getting full points. In the remaining three matches, I think Ancelotti's squad will definitely be able to secure full points again, and will not face any significant obstacles, because I doubt the other three clubs in group Ccan overthrow the La Liga giants.
Regarding injured players, no one knows and no one can predict when it will happen, what you can do is avoid it. Their success in getting 3 points after beating Barcelona in the eleventh week, makes us know that their potential opponents in the UCL need to be aware of their strength this season. However, that doesn't mean there won't be any more defeats, we have seen many surprises occur in Europe's highest competition.