Over the years, Barcelona and Real Madrid have boasted some of the biggest global superstars.
The likes of Zinedine Zidane, Ronaldinho, Ronaldo, Luis Figo, Roberto Carlos and David Beckham - just to name a few - have all taken part in "El Clasico" - or "The Classic".
The match between these two great clubs is watched by hundreds of millions of people, and is arguably the biggest match in world football - fitting for the aforementioned legends of the game. However, these great players no longer wear the colours of the Spanish rivals, and therefore more world superstars have taken their place, including players like Andres Iniesta, Xavi, Mesut Ozil, Xabi Alonso and Kaka.
After careful consideration, I have put together the best "El Clasico" team of current stars.
Who would you put in this incredible side? Have your say on who I may have missed out in the comments section.
Goalkeeper: Iker Casillas | Real Madrid
A no-brainer. The "Galacticos" goalkeeper has been No.1 in Madrid since 1999, making 654 appearances. He has been voted into UEFA's Team of the Year for six consecutive years, a record shared with Cristiano Ronaldo.
Casillas also captained Spain to World Cup glory in 2010, and European Championship success in 2008 and 2012. Truly a legend of the game, he comfortably sees off Victor Valdes to be the goalkeeper of this side.
Right-back: Dani Alves | Barcelona
The right-back has been a revelation in Catalonia since joining in July 2008. He has since made 245 appearances for Barcelona, scoring 16 goals.
The Brazilian has often been mistaken for a right-midfielder following his pace and attacking instinct, and this, combined with solid defensive skills, means that Alves has truly set the standard of the modern full-back.
Centre-back: Sergio Ramos | Real Madrid
The Spanish central defender, who can also play at right-back, has played 346 matches for Real Madrid, scoring 40 times. Ramos, 27, has taken part in numerous Clasicos and scored the winner in the most-recent one. A solid defender, the Madrid No.4 has been ever-present in the Spanish champions' side since 2005, where he joined from Sevilla for approximately £21m - arguably now a bargain price.
Centre-back: Gerard Piqué | Barcelona
The 6ft 4in centre-back has been magnificent for the Catalonian side, playing 217 games and scoring 16 goals. Piqué left Barcelona's academy in 2004 for Manchester United, only to return in 2008 for a bargain £5m, one of Sir Alex Ferguson's major errors.
Since returning, the Spaniard has become a key figure in Barcelona's side, and has helped them to 14 trophies, including two successful Champions League campaigns.
Left-back: Marcelo | Real Madrid
Brazilian left-back Marcelo joined Madrid in January 2007 from Fluminense, and he has since played in 223 games, scoring 17 goals. Marcelo is said to have great technical ability, good passing, and a fierce shot - qualities that have all been demonstrated for Real Madrid since the Brazilian's 'breakthrough' season of 2010/11.
His impressive performances prompted legends Roberto Carlos, Paolo Maldini, and Diego Maradona to name Marcelo as the "best player in his position in the world".
Defensive midfield: Xabi Alonso | Real Madrid
Perhaps the best holding midfielder in world football, I have chosen ex-Liverpool midfielder Alonso to play in this defensive role of a 4-3-3 formation.
The 31-year-old Spaniard is well-known for his passing ability and is regarded as one of the best passers in world football. Alonso has played 182 games for Madrid since joining in August 2009 for £30m, scoring six times.
Central midfield: Xavi | Barcelona
The Barcelona midfield maestro has been in the first-team of the Spanish giants since the 1998/99 season. Xavi, 33, has played for his club all his career, making 666 appearences, scoring 81 goals, most recently a penalty against PSG in the Champions League.
Considered one of the greatest playmakers of the 21st Century, Xavi has won 20 major trophies with Barcelona, as well as winning a World Cup and consecutive European Championships with his country, Spain. He is also appeared more times in a Barcelona shirt than any other player.
Central midfield: Andrés Iniesta | Barcelona
Spanish playmaker Iniesta is already a Spain legend despite being only 28 years of age, following his dramatic goal in the 1-0 win in the 2010 World Cup final in South Africa.
Since then, Iniesta has gone on to prove himself to footballing fans worldwide, and even won UEFA's Best Player in Europe award in 2012, beating Cristiano Ronaldo and Lionel Messi.
Iniesta has played his whole career at Barcelona, playing 444 matches and scoring 46 times.
Right-wing: Cristiano Ronaldo | Real Madrid
At right-wing, and believed by many to be the most complete player in the world, Portugal's very own Ronaldo who has seemingly hit greater heights than his Brazilian namesake.
The former-Manchester United forward joined Real from United in July 2009 for £80 million, therefore becoming the most expensive player of all time.
Ronaldo, 28, has not let anyone down at Madrid, winning the Spanish Supercopa, La Liga, and the Copa del Rey. The two-time Ballon d'Or winner has scored a mind-blowing 190 goals in just 188 games.
Striker: Lionel Messi | Barcelona
Argentinian world superstar Messi may not be the ideal centre forward, but what he lacks in size and stature, he more than makes up in his ball skills.
Winner of the Ballon d'Or a record four times in a row, Messi is arguably the best player in the world, and maybe of all time. He has played his whole career at Barcelona, taking part in 374 games, and scoring 310 goals.
Left-wing: David Villa | Barcelona
Spanish striker Villa takes the left-wing position in this team from right under Angel Di Maria's nose.
The former-Valencia forward signed for Barcelona in 2010 for approximately £34m. Since then, despite breaking his leg and missing most of Barcelona's last campaign, Villa has played 108 times for Barcelona, scoring 46 times, and racking up 15 assists. Villa also won the World Cup in 2010, and the 2008 European Championships, where he won the Golden Boot.
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