Lol. didn't he threaten to ban Madrid if it doesn't change surface. If Madrid was on blue clay, Nadal will only play Barcelona. He plays those events because they are in red clay not because they are in Spain.
What the fuck does the surface matter? Federer plays an indoor event in Switzerland that he does well at, doesn't make his appearance there any lesser. The point is he already plays plenty in Spain. Publicly complaining about a Nadal non-appearance in Valencia is pathetic whining by their organizers, especially when they already have a top five Spaniard from the SAME PROVINCE as the tournament playing.
And Djokovic wouldn't have come back to Madrid on blue clay either. The surface had no place in the middle of the red clay season. Imagine the reaction of grass courters if Queens or Halle made a gimmicky change into a slow and high bouncing red grass surface in the middle of the grass season.