Actually in this case there are several other players who can be used as Super Sub like Asensio at Real Madrid because he is still quite good as a substitute.
Yes, there are some players that potentially become super subs in Real Madrid. Not only Asensio, they have Camavinga and Valverde. These midfielders are very good whenever they are released to be the substitution players. And Ancelotti often changes their tactics drastically when these super subs are released in 2nd half. Many people don't realize this.
But indeed in this match Liverpool must also anticipate the movements of Vinicius and Rodrygo because Rodrygo's movements are sometimes dangerous
All Real Madrid attackers played very impressively in the previous round, so it is a wrong perception if only focus to anticipate Benzema. We all know Rodrygo, this man even can score 2 goals in 2 minutes.