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

Mexico's Luis Romo, third left, celebrates with his teammates after scoring g his team's first goal during the World Cup Group A soccer match between Mexico and South Korea in Zapopan, near Guadalajara, Mexico, Thursday, June 18, 2026. (AP Photo/Natacha Pisarenko)

GUADALAJARA, Mexico (AP) — 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 on Thursday.

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.

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.

The South Koreans nearly equalized in the 87th minute when Mexico goalkeeper Raúl Rangel stopped a header from close range by Cho Gue-sung, then made an even better save on the rebound, extending his right arm to keep the ball from crossing the line.

Mexico has six points from two Group A matches, three more than South Korea and five more than the Czech Republic and South Africa, who drew 1-1 earlier Thursday in Atlanta.

The top two teams from each group move on to the knockout stage, along with the best eight third-place teams. A round of 32 is being played for the first time at the World Cup after the tournament was expanded to 48 teams.

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AP World Cup: https://apnews.com/hub/fifa-world-cup

Mexico goalkeeper Raul Rangel (1) makes a save on the goal line during the World Cup Group A soccer match between Mexico and South Korea in Zapopan, near Guadalajara, Mexico, Thursday, June 18, 2026. (AP Photo/Fernando Llano)

Mexico goalkeeper Raul Rangel, middle, reaches to stop the ball during the World Cup Group A soccer match between Mexico and South Korea in Zapopan, near Guadalajara, Mexico, Thursday, June 18, 2026. (AP Photo/Silvia Izquierdo)

Mexico's Raul Jimenez (9), center, vies for the ball with South Korea's Kim Min-jae (4) during the World Cup Group A soccer match between Mexico and South Korea in Zapopan, near Guadalajara, Mexico, Thursday, June 18, 2026. (AP Photo/Ricardo Mazalan)

Mexico's Luis Romo (7), left, scores the opening goal during the World Cup Group A soccer match between Mexico and South Korea in Zapopan, near Guadalajara, Mexico, Thursday, June 18, 2026. (AP Photo/Ricardo Mazalan)