Mexico took advantage of a defensive blunder by South Korea to win 1-0 and become the first team to advance to the knockout stage of the World Cup. It marks a major triumph for a team that failed to get out of the group stage in 2022 and now has won twice on home soil in front of jubilant crowds. Mexico players celebrated at midfield and waved to the fans who cheered and sang from the packed stands at Estadio Akron on Thursday. Luis Romo scored in the 50th minute after South Korea goalkeeper Kim Seung-gyu collided with defender Lee Gi-hyuk and dropped the ball inside the area. Romo easily found the open net after picking up the loose ball.This time there were no empty seats in Guadalajara, contrary to what happened in the earlier match between South Korea and the Czech Republic. FIFA had blamed fans standing in the concourses for the empty seats. Thursday’s crowd was announced at 45,522 for the 45,664-capacity stadium, which was hosting the national team for the first time.