Robert Lewandowski scored twice and Lamine Yamal piled on to ruin Kylian Mbappe’s first “El Clasico” as Barcelona routed Real Madrid 4-0 on Saturday.

The lopsided victory in Spain’s capital ended the hosts’ unbeaten run in La Liga at 42 games, one shy of Barcelona’s record streak in 2017-18. Carlo Ancelotti’s side suffered their first loss since September 23, 2023.

Lewandowski got the visitors going from a superb pass by Barcelona’s latest youth talent Marc Casado in the 54th minute and rose up to head in a fine header three minutes later to silence the Santiago Bernabeu Stadium.

Yamal turned the match into a rout in the 77th when the teenage phenom rifled a shot from an angle over goalkeeper Andriy Lunin. The goal made him the youngest scorer in an El Clasico at 17 years, 105 days, surpassing teammate Ansu Fati, who was about 250 days older in October 2020.

Raphinha then broke free with Madrid completely unhinged and chipped Lunin in the 84th.

The win came three days after Barcelona thumped Bayern Munich 4-1 in the UEFA Champions League. Barca have outscored their last five opponents 21-2.

“We came here to do just this,” Yamal said. “We had lots of confidence and when we scored the second goal, we wanted to score a third, and then a fourth, as many goals as possible. To win 4-0 at this ground and beat Bayern 4-1, we showed that we are ready for anything.”

It is an understatement that Mbappe had a frustrating first game against Barcelona in a white shirt. The French star was caught offside eight times by Barcelona’s synchronized back four and failed to beat second-choice goalkeeper Inaki Peña one-on-one with his team down two goals.

“We knew that they played with a high line, and we just couldn’t take advantage of it,” Ancelotti said. “Sometimes (Mbappe) fell offside, but he had three or four chances to score and needed a better finishing touch.”