Always ready for a new challenge, Cristiano Ronaldo has to continue finding ways to outdo himself, and Saturday's match is yet another opportunity since Atletico have always been a team he has fared well against.
Therefore the pressure for him to put in another performance like his earlier hat-trick at the Estadio Vicente Calderon mounts.
It hasn't been the easiest of seasons for the Portuguese star, as it is his worst goals per minute ratio since 2009/10.
If it were any other player, 26 goals in 35 matches would be an impressive feat, but Ronaldo is held to other standards.
That comes out to 0.74 goals per 90 minutes, while his worst season - his first at Madrid- he was netting at a rate of 0.94.
With nine LaLiga matches left, and what he'll be hoping is more than two Champions League ties, there is still plenty of time for a player of Cristiano Ronaldo's calibre to turn things around.
The Portuguese star has already beaten Atletico Madrid 14 times in his career, and they are his third favourite target.
It is 18 derby goals in 26 matches and the Real No.7 will be looking to expand on that come Saturday afternoon.
