Honestly it seems the aging players in Real Madrid is already affecting the performance of the club Luka Modric is 37, Karim Benzema is 35 and David Kross is 33, Alaba 30 these are established and well experienced players unfortunately age is affecting their output, though Madrid has the likes of Camavinga, Vinicius Jr, Tchouameni as a promising talented youngsters, however I think Chelsea has a youthful squad who will pose a threat to Real Madrid qualification to the semifinals provided that Graham Potter played a good team with a perfect tactical formation.
Real Madrid's current condition is good, but Chelsea's statistics are not in favor of Real Madrid. Chelsea may be a little lucky that their second leg will be played in England. It's hard to guess, but I hope Madrid can win big in the first leg. That will make it easier for them in the second leg. At this time, Potter is also dizzy because of poor results in the EPL. Maybe Potter can be sacked at the end of this season. UCL is one of Potter's hopes to win and entertain the fans.
After all, I think Real Madrid and Chelsea at this moment cannot be compared in terms of performance and quality. Also, although Chelsea can still play in the quarter-finals of the Champions League this time, because Chelsea managed to make a comeback after beating Dortmund. But still, playing against Real Madrid is not promising just about the results of the previous comeback and also, it is not enough just to have young players.
Due to the fact last season when Chelsea still had good performance under Tuchel's coaching, but Chelsea still couldn't knock Real Madrid out of the Champions League. Real Madrid's previous success in getting rid of Liverpool is at least proof that with the squad that Real Madrid has this season it still allows Real Madrid to beat the next Premier League team, and that is Chelsea.