Cristiano Ronaldo was missing from the Real Madrid session, whilst Jordi Alba was conspiciously absent for Barca.
It is understood that Ronaldo did train, but alone, away from the group.
#RMClasico #HalaMadrid
— Real Madrid C.F. (@realmadrid) 20 December 2017
Seguimos preparando el partido contra el Barcelona pic.twitter.com/VfiONM61OV
It was a similary story for Barca and Alba, with the left-back working according to an indiviual program rather than being put through his paces with the rest of the squad.
Entrenamiento de los jugadores disponibles del primer equipo en el campo Tito Vilanova. Jordi Alba y Arda hacen trabajo específico #FCBlive pic.twitter.com/tvQIRChUeF
— FC Barcelona (@FCBarcelona_es) 20 December 2017
With just three days to go until one of the most eagerly-anticipated games of the season, both players will be looking to fight their way back to fitness ready to line up and defend their club's honour on Saturday.
Should either player miss out, it would be a huge blow for both the player and club involved, but also for the neutral.
Alba provides much of Barca's width down the left following the departure of Neymar, whilst Ronaldo gives Real a focal point to their attack.
This one is not to be missed.