Talking about mentality actually Real Madrid is better than Chelsea because last round when Real Madrid defeated PSG we know about how mentality of Real Madrid player there. Chelsea still not get heavy against team on Champion league except with Juventus on group stage,
Yep, this season, Chelsea still didn't face strong opponents like Real Madrid. Juventus can be said not a really strong team because their performance decreased so much after Ronaldo left. Considering the performance of Juventus players, they are experiencing a bad season right now. So, we simply can conclude Juventus isn't a really strong team. While Real Madrid has played against PSG which has many superstars on its squad. They are almost defeated by PSG, luckily Real Madrid has Benzema who can save real Madrid in the previous stage. If we consider this, the mentality of Real Madrid players is definitely more prepared and tested.
Agree with you Chelsea performance keep not really strong actually on domestic league have out from candidate for getting primer league, I think will be like last year where Chelsea not favorite on domestic league and failed getting trophy from Manchester City but have impressive performance on champion league and success defeated Manchester City on final, but have different situation right now when Chelsea have against with Real Madrid on quarter final, keep impressive performance on domestic league, Real Madrid as candidate for getting La Liga trophy and have with double winner in this season with Champion League and La Liga trphies.