Barcelona dealt a stinging blow to Real Madrid's title hopes when Luis Suarez and Neymar continued their scintillating form to fire the champion to a stunning 4-0 victory in the La Liga ‘Clasico' Saturday. Suarez struck twice either side of goals from Neymar and captain Andres Iniesta as Barca humiliated its arch rival with an imperious performance at the Bernabeu. It surged six points clear at the top with 30 from 12 matches and ratcheted up the pressure on under-fire Real coach Rafa Benitez who had the luxury of fielding the trio of Ronaldo, Gareth Bale and Karim Benzema but to little effect. Barca's dominance in the 231st meeting between the two teams, which prompted the angry Real fans to roundly whistle their own players and chant for president Florentino Perez to step down, was all the more remarkable considering coach Luis Enrique had started with a fit-again Lionel Messi on the bench. The Argentina captain, who has been out for nearly two months with a knee injury, came on for Ivan Rakitic just before the hour and promptly sent Suarez clear to score the European champion's fourth. An utterly dominant Barca could easily have added to its tally in the closing stages and Real's humiliation was complete when substitute Isco was shown a straight red card for a wild lunge at Neymar six minutes from time. "We played what was quite honestly a complete match in every sense," Iniesta, who was given an ovation by the home fans when he was substituted late on, told Spanish television. "There is a long way to go, it's not decisive at all but we are going away very, very satisfied," added the Spain playmaker. A giant French flag was unfurled in the stands and the Marseillaise played during a minute's silence before kickoff to honor the victims of the Paris attacks and security was tight for the clash in the Spanish capital. After the whistle, thousands of Real fans waved anything white they could get their hands on in the traditional sign of discontent with the board of directors while the music came on full blast to drown out any more embarrassing chants. Chasing a sixth La Liga title in eight years, Barca has 30 points, with Real, which lost 3-2 at Sevilla in its previous outing, on 24. Valencia missed a chance to move above Celta Vigo into fourth when it lost the lead in a 1-1 draw at home to Las Palmas as Celta lost 2-0 at Galician rivals Deportivo La Coruna. Valencia has 19 points while Celta remains on 21. Goals from Imanol Agirretxe and Xabi Prieto gave Real Sociedad coach Eusebio Sacristan a winning start in a 2-0 success at home to stuttering Sevilla. PSG stretches lead Reigning champion Paris Saint-Germain stretched its lead in Ligue 1 to 13 points Saturday after claiming a 2-1 victory away to Lorient with security tight after the attacks in Paris. Playing for the first time since the attacks, the capital club extended its winning run to eight matches through first-half goals from Hervin Ongenda and Blaise Matuidi at the Stade du Moustoir. Benjamin Moukandjo netted his league-best 10th goal to set up a nervy finish but Lorient ultimately suffered its first defeat in six outings. Elsewhere, Mario Pasalic's 43rd-minute goal earned Monaco a 1-0 victory over Nantes while Guingamp beat second-from-bottom Toulouse 2-0. Montpellier made it five games unbeaten with a 3-1 defeat of a Reims side in freefall as they lost their sixth straight match. Troyes remains winless following a 1-1 draw with Lille who were playing their first game following the sacking of coach Herve Renard. — Agencies