Saturday

Celta Vigo     vs     Málaga    19:00    Sevilla     vs     Getafe    21:00    Mallorca     vs     Espanyol    23:00    Sunday

Athletic     vs     Betis    19:00    Real Madrid     vs     ValenciaBarcelona     vs     Sociedad    21:00    Levante     vs     Atlético    23:00    Monday

Deportivo     vs     Osasuna    19:00    Rayo     vs    Granada    21:00    Zaragoza     vs     Valladolid    23:00 MADRID - Records promise to tumble again in the 2012-13 La Liga season as world powerhouses Real Madrid and Barcelona resume their duel for supremacy, threatening to cast Spain’s other 18 clubs even further adrift.Jose Mourinho’s Real had to smash league points and goal-scoring tallies to end arch-rivals Barca’s three-year hold on La Liga last May, driven to exceptional heights by their rivalry with one of the greatest club teams of all time.Barca have a change of face at the helm for the new campaign with the untested Tito Vilanova having big shoes to fill as Pep Guardiola’s replacement, but after four years as assistant he brings a strong thread of continuity with him."This duel of titans forces the clubs and the players to become better,” Mourinho, whose side start out at home to Valencia on Sunday, told Portuguese television this week."The two clubs are fighting for world football hegemony.”Spanish football is basking in glory after the national team completed an unprecedented treble by winning Euro 2012 in July, having also scooped the 2010 World Cup and Euro 2008.Real and Barca supplied 11 of the 13 players who featured in Spain’s 4-0 rout of Italy in last month’s final in Kiev and with Portugal’s Cristiano Ronaldo and Argentina’s Lionel Messi added to the equation, their firepower is increased further.GOAL-SCORING DUELAs with the club rivalry, the goal-scoring duel between Ronaldo and Messi appears to spur them to ever greater heights, and Argentine World Player of the Year amassed 50 league goals last season, to better Ronaldo’s previous record of 40.Real are closing on Tottenham Hotspur’s Croatian playmaker Luka Modric to strengthen their midfield, otherwise their relatively young squad has remained largely unchanged.Barca, who host Real Sociedad on Sunday (1900), have added explosive Spain full back Jordi Alba to their ranks for 14 million euros, and are seeking another defensive reinforcement before the end of the month.Vilanova will need to nurture ageing stalwarts Carles Puyol (34) and Xavi (32), while hoping David Villa has not lost any of his sharpness after recovering from a broken leg which kept him sidelined for a large part of last season.The strength of Real and Barca, the world’s two richest clubs by income according to Deloitte’s annual survey, and the success of the Spanish international team, contrasts sharply with the parlous state of the rest of the La Liga.Last year, the players went on strike to delay the start of La Liga over unpaid wages and this season’s competition was almost put back because of a dispute with broadcasters over television rights which is still unresolved.Agencies