In a match defined by its lack of creativity, Mexico became the first team at the 2026 World Cup to secure a spot in the knockout stage, defeating South Korea 1-0 on October 8. The victory all but ensures Mexico will top their group and remain in Mexico City, setting the stage for a potential showdown at the historic Azteca Stadium in the last 16.

The only goal of the match came in the 50th minute, courtesy of a blunder from South Korean goalkeeper Kim Seung-gyu. Attempting to claim a looping header, he collided with defender Lee Ki-hyuk, spilling the ball to Luis Romo, who scored his fifth international goal. Romo was one of three changes made by Mexico’s coach Javier Aguirre, who opted to keep 17-year-old Gilberto Mora on the bench despite calls for him to start.

A remarkable double save from Mexico's Raúl Rangel in the dying minutes preserved the lead, showcasing his skill against attempts from Cho Gue-sung and Yang Hyun-jun. Aguirre acknowledged the tactical nature of the match, stating, "The wins speak of our maturity as a team."

Despite the historic nature of this game being held in Guadalajara, the stadium was not full, with visible empty seats. The atmosphere contrasted sharply with the earlier game in which Mexico had booed their team despite a lead.

Both teams appeared hesitant, prioritizing a draw to secure progress. South Korea's preparations were marred by controversy surrounding Son Heung-min, who struggled throughout the match. Coach Hong Myung-bo expressed disappointment but noted the importance of not being discouraged.

As Mexico celebrates their advancement, questions linger about their performance quality, with both teams displaying only functional competence thus far.