The Tsunami Democratic group has earmarked the rearranged Clasico between Barcelona and Real Madrid for political protests on December 18.
Zinedine Zidane's Real Madrid donned a green third kit in solidarity with climate change activists, beating Espanyol in an uninspiring game.
Lionel Messi has scored more than 600 goals for Barcelona but picked out a header in 2009 as his favourite of them all.
Mariano Diaz and Isco could be sold for Real Madrid to make room to sign Christian Eriksen in January.
Ernesto Valverde took his Barcelona team out of the city on Thursday to avoid political disruption ahead of the match with Eibar.
Antoine Griezmann was dropped for Ousmane Dembele, who scored the third of Barcelona's goals in a 4-0 victory over Sevilla.
With Marcelo, Nacho and Ferland Mendy sidelined by injuries, Real Madrid have no established left-backs for their clash with Granada.
Thibaut Courtois was taken off at half-time in Real Madrid's 2-2 draw with Club Brugge, but Erwin Lemmens has backed him to bounce back.
Barcelona head coach Ernesto Valverde was full of praise for Luis Suarez following Saturday's victory away to Getafe.
Goalkeeper Marc-Andre ter Stegen had never claimed a goal assist before playing the long pass that allowed Luis Suarez to score past Getafe.