Madrid coach Julen Lopetegui is under enormous pressure with his side seventh in La Liga and four points behind Barca, who sit in first despite some uneven form of their own to begin the season.
But Suarez, who has four goals and four assists in nine league games this season, said the teams' form often mattered little.
Benzema or Suarez, Busquets or Casemiro? Barcelona-Real Madrid combined XI
The Catalans lead the way in the Primera Division table, holding a one-point lead over Espanyol and Alaves, but while Madrid find themselves apparently distant in seventh, victory would draw them to within a point of their foes and, temporarily, at least, arrest talk of crisis.
In the build up to the game, though, there are inevitable squabbles over which team has the better squad. Is Luis Suarez superior to Karim Benzema or is Casemiro better than Sergio Busquets?
