The South Korea national football team lost 0-1 to Mexico in the 2026 FIFA World Cup group stage. Son Heung-min played as a striker but was substituted due to coach Hong Myung-bo's tactical decision, which raised questions from legends. Son Heung-min has played as a world-class winger for Tottenham for 10 years. If Oh Hyeon-gyu plays as a striker, Son Heung-min can play as a left winger. However, coach Hong Myung-bo is only using Son Heung-min as a substitute. This requires tactical flexibility. Lee Keun-ho pointed out, "Why substitute Son Heung-min again? He's in good shape today..." Lee Eul-yong also expressed regret over the substitution, saying, "If we put Son Heung-min on the side, we can use him. We have a chance now." Lee Cheon-su agreed, saying, "If we're going to substitute him, it's better to put him in later. It's the most frustrating time for a player." The South Korea national football team can advance to the round of 32 if they draw with South Africa in the final match on the 25th. The result of the match against South Africa is very important for Korea.