Starting this weekend, fans of football will get to witness four El Clasico matches before the end of the year. The league meeting at the Bernabéu, The Copa del Rey Final, and a home-and-away tie in the Champions League semi-finals.
Some of the most talented professionals have graced the Camp Nou and the Bernabéu. Ronaldo, Beckham, Rivaldo and Ronaldinho are examples of the types of talent associated with these historic and dominant sides.
The illustrious history of these two clubs is well known, and their style of play and market appeal spans the globe.
However, as highly regarded as these clubs are, Madrid and Barcelona for some reason or another also boast a high record for having young and promising players fail to live up to their potential.
Maybe its the pressure, the price tag, or in some cases the attitude of the player. Some of the most sought-after youngsters have donned the colors of Madrid and Barcelona, only to fail to live up to the hype.
At one point or another, many of these players were considered "the next big thing," only to be found playing in Greece or Turkey sooner rather than later.
One thing is certain, after leaving for greener pastures in Spain, many players found out the cold hard truth. The grass is not always greener on the other side.
Here is the list of the top 10 players who never quite made it with Madrid and Barcelona.