South Korea have ended the quest of Nigeria’s Flying Eagles to win their first-ever U-20 World Cup at the quarter-final stage on Sunday, after they lost 1-0 win  at the Santiago Del Estero. An extra-time goal by Choi Seok-hyeon was the difference as the Asians progressed to the semi-final of the U-20 World Cup in Argentina, where they face European champions, Italy. Ladan Bosso made one change to the side that defeated hosts Argentina on Wednesday as Samson Lawal made way for Victor Eletu, who provided the assist for the second goal against the South Americans four days earlier. Nigeria started the encounter as the better side and almost got the opener just two minutes into the game, and they piled on pressure keeping the Korean caged for most of the first half. The second half was more of the same, save for the forays made by the young Koreans who looked the more purposeful of the two sides. Four minutes into extra time, South Korea took the lead with their first shot on target in the encounter, Lee Young-jun’s corner-kick headed in by Choi Seok-hyeon. The South Koreans held onto their slender lead as they sealed a spot in the semi-finals and will face Italy on Thursday.