Leonardo Campana of Ecuador reacts during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Leonardo Campana of Ecuador reacts during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Choi Jun of South Korea celebrates during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Lee Kangin (C) of South Korea vies with Jhon Espinoza (L) and Jose Cifuentes of Ecuador during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Players of South Korea celebrate after the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Players of South Korea celebrate during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

South Korea's Lee Kangin (2nd L), Kim Seyun (1st R) and Choi Minhsoo (2nd R) celebrates after the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Players of South Korea celebrate during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Players of South Korea celebrate during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Jorge Celico (L), head coach of Ecuador, gives the ball to Choi Jun of South Korea during the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)

Go Jaehyeon (L), Kim Jungmin (C) and Jeon Sejin of South Korea react after the FIFA U-20 World Cup Semifinal match between Ecuador and South Korea in Lublin, Poland, June 11, 2019. South Korea won 1-0 to enter the final. (Xinhua/Adam Starszynski)