MADRID, Nov. 28 (Xinhua) -- At 19.00 hrs on Sunday virtually all of Spain will come to a halt to watch the most important club match of year as FC Barcelona entertains Real Madrid in the Camp Nou stadium.

    The 'Classico' as it has come to be known is the biggest league match in Europe and probably the world as Spain's top two sides continue their historic rivalry in front of almost 100,000 fans in the Camp Nou Stadium and a worldwide television audience in the tens of millions.

    This year's Classico promises to be more decisive that ever. Real Madrid spent over 250 million euros over the summer after watching how Barcelona won the hearts of football fans last season.

    With the backbone of the side made up of players who have progressed through its youth system: players such as Leo Messi, Andres Iniesta, Xabi and Carles Puyol, Barcelona played some of the best football a club side has ever produced. The team is a domestic and European treble, winning the Primera Liga, the King'sCup and the Champions League in style, while Real Madrid fans could only look enviously on.

    This season Barcelona has added the Spanish and European Supercups and in December flies to Dubai to play in the World ClubChampionships.

    Indications are that it is placing a strain on a squad many think is too thinly spread for the massive amount of matches it will play this season.

    Barcelona brought in Zlatan Ibrahimovich over the summer along with left back Maxwell and expensive central defender Chygrynskiy. Ibrahimovich has done well, but Chygrynskiy has struggled.

    Indeed the biggest success this season has been young winger Pedro Rodriguez, who has won the fans over with some breathtaking displays of pace and confidence.

    Real Madrid has tried to combat that success. Over the summer Florentino Perez returned as club president and spent money as it has never been spent before.

    He paid a world record free of 95 million euros for Cristiano Ronaldo and a further 65 million euros to bring Kaka from AC Milan.

    Karim Benzema and Xabi Alonso were further multi-million euro signings, while former youth team players Alvaro Arbeloa and Esteban Granero also returned to the club to give the side a more 'homegrown' feel than other projects.

    Meanwhile players signed under the regime of former president Ramon Calderon, such as Arjen Robben and Wesley Sneijder, were sold.

    Manuel Pellegrini was signed from Villarreal. Perez wanted Arsene Wenger, but the Arsenal coach said he could not join, because what Madrid was doing went against his philosophy of working with youngsters and bringing them on a players.

    Pellegrini, whose nickname is the 'Engineer' enjoyed five excellent seasons at Villarreal, but has had a difficult time at the Santiago Bernabeu.

    Even though his Madrid has registered the club's best ever start to a season, the football on display has not been good. The side has struggled against lesser sides only to win thanks to moments of individual brilliance from Ronaldo or Gonzalo Higuain.

    The fans still look enviously at the flowing football produced by a Barcelona outfit that looks like a true team, rather than a collection of expensive individuals.

    When Madrid was humiliated in the King's Cup by third tier side Alcorcon, losing 4-0, it looked as if Pellegrini would be sacked.

    Should Pellegrini's side be beaten heavily in the Camp Nou, he will probably lose his job. But if Ronaldo, Kaka or Benzema produces a moment of magic, his job will be safe and Madrid will take a big step towards the title.

    Sunday's game has it all: teamwork against talented individuals, faith in the youth system against the big spending side from the capital. At 19.00 hours all of Spain will sit down to watch the outcome.