In the Catalan derby, Barcelona defeated Espanyol 2-0 away from home with a wonderful goal from 17-year-old star Lamine Yamal and his assist to Fermin Lopez's stoppage-time goal, not only securing the La Liga championship this season, but also achieving the double championship of Flick's coaching season. Barcelona defeated their rival Real Madrid in the King's Cup final and won the championship.

In the 53rd minute of the game, Lamine Yamal received the ball at the edge of the penalty area and cut inside. He shot a curved ball into the dead corner and broke the Espanyol goal, breaking the deadlock for Barcelona. In the 80th minute of the game, Espanyol defender Cabrera was sent off directly for a retaliatory foul on Yamal. In the stoppage time, Yamal once again showed his talent. He assisted another young midfielder from La Masia, Fermin Lopez, to expand the score to 2-0 and lock in the victory.

This is the second time that Yamal has won the league title with the team in his career, and this time it is more important. He is one of the most amazing discoveries of Barcelona this season. This victory also marks that Flick has led the team to win La Liga and the King's Cup in his first season as coach of Barcelona, successfully "crowned the double champion".

Barcelona defeated their old rival Real Madrid in the Copa del Rey final last month and won the championship, although they lost to Inter Milan 6-7 on aggregate in the Champions League semi-finals and missed the dream of winning the treble.

This is also the 28th La Liga championship trophy in Barcelona's history. Although it is still behind Real Madrid's 36 titles, the team has shown signs of strong revival under the leadership of Flick. Barcelona still has two league games to play. They will face Villarreal at home this weekend and then play away against Athletic Bilbao to end the perfect season.