#4 Antoine Griezmann
Who else if not the best non-Real Madrid or Barcelona player in Spain? Antoine Griezmann has been in scintillating form over the last few years and this consistency in itself puts him on par with the greatest players of the world.
The fact that the Frenchman plays for Atletico Madrid almost guarantees us that he will be on the move some day. Indeed, he has refused to rule out a move across the divide to Real Madrid, stating that anything can happen in the game.
Last year, he ended up as the third best player in the world after a fantastic display of skills for club and country. That in itself makes him one of the usual suspects to break the £100 million barrier. That, and the fact that Atletico Madrid are a very difficult team to negotiate with when it comes to acquiring their star players.