Chelsea may need to learn from Barcelona this season on how to beat Real Madrid to qualify for the semi-finals.
Barcelona have won 3 El Clasico matches so far this season against Real Madrid (Spanish Super Cup Final, Copa Del Rey and La Liga), this is very important for Chelsea, especially about how Barcelona overcomes Real Madrid's and take advantage their weaknesses.
Chelsea must realize that Vinicius and Benzema are two players who need to stop their movements. Their individual skills very often make the opposing team concede and lose a match, so if Chelsea manage to overcome these two players then of course they will succeed in minimizing the possibility of conceding goals. But Real Madrid is not only about those two players, Asensio and Rodrygo are also dangerous but these two players are not really getting a place in the main line-up. I think Chelsea must appear different from Liverpool, so they also need to learn a lot from Liverpool's mistakes against Real Madrid so that there is still a chance of reaching the semi-finals.
This is a bit of a different story for Barcelona and also Chelsea, how come Barcelona didn't succeed in advancing to the next round and had to end in the preliminary round but they didn't lose in LaLiga in the sense that they still lead the standings until now and are able to continue to beat Real Madrid as their rival .
Meanwhile, Chelsea in the Premier League were still in bad condition last week and they had to draw and continue to be stuck in the 10 standings until there was no movement in a few weeks, while for the Champions League competition Chelsea were still very lucky for them to qualify for the top 8 and now have to face Real. Madrid is certainly a formidable opponent, maybe some people doubt Chelsea but in terms of H2H their meeting is quite balanced.
Real Madrid of course have a sharp striker but I think Chelsea also have to have with their players skills to show, but what's more scary is that a counter-attack from Real Madrid will be a bad thing for the opponent.