In the 2018-19 season, RCD Espanyol suffered their first defeat in the Copa del Rey since 2014, as they were defeated by Valladolid in the final match of the competition. The match was played at the Estadio Olímpico de La Plata in Buenos Aires, Argentina, and saw RCD Espanyol come out on top after winning 3-1.

Wu Lei, a talented player for China's national team, made his debut in the Copa del Rey this season. He scored his first goal in the tournament, which came in the 56th minute of the game, with a header from a corner kick. However, it wasn't enough as RCD Espanyol won the match 3-1.

Wu Lei has been one of the most promising talents in the Spanish league this season, scoring three goals in his last seven appearances. His performances have impressed both fans and coaches, who believe that he is ready for bigger things.

Despite his success, Wu Lei still faces some challenges in his career. As a Chinese national team player, he will be eligible for the upcoming World Cup in Russia. However, his international career may not start until next year due to the ongoing FIFA transfer window.

Overall, the Copa del Rey was a disappointing end to the season for RCD Espanyol, who struggled to overcome adversity and perform well against strong opponents. However, there is hope that Wu Lei can continue to improve and make a name for himself in the Spanish football scene.