Robert Lewandowski struck twice in two minutes as Barcelona crushed rivals Real Madrid 4-0 on Saturday, inflicting the Spanish champions' first La Liga defeat in over a year. Teenage winger Lamine Yamal and Raphinha completed the rout, while Madrid superstar Kylian Mbappe had two goals ruled out for offside on a frustrating first Clasico appearance for Los Blancos, who now trail league leaders Barcelona by six points. France captain Mbappe was consistently outwitted by the visitors' high defensive line to the chagrin of the exasperated Santiago Bernabeu crowd, whose mood darkened as Barcelona hit four second-half goals. Barcelona snapped Madrid's 42-match unbeaten streak in La Liga, one game short of the Catalan giants' all-time record, adding further shine to their triumph. 

"It's a hard moment, a tough moment when you lose a game, (especially after) so many unbeaten," admitted Madrid coach Carlo Ancelotti. His counterpart Hansi Flick has whipped Barcelona into shape in just a matter of months and in ending a run of four Clasico defeats, his young side made a statement victory to show how far they have come. "The big objectives are (fought) against the best in the world and we've shown that we've got the ability to beat anyone, that we've got the mentality and that we've changed," said Barcelona goalkeeper Inaki Pena. Ancelotti's game-plan was clear -- defend in numbers and try to spring Mbappe or Vinicius Junior with a long ball into the space behind Barcelona's defence. It led to an intense but repetitive first half, with Barcelona's defence catching Madrid offside on eight occasions.