Korean fans reacted fiercely when the Vietnam national team achieved an impressive victory.

South Korean fans showed surprising reactions after Vietnam's national team beat all three Korean sides in their training trip here.

The 2-1 win over Gangwon FC ended Vietnam's training camp in Korea with a perfect record. Coach Kim Sang Sik's team successively defeated Siheung FC 6-0, Yongin FC 2-1, and Gangwon FC 2-1, representing teams from the K3 League, K League 2, and K League 1 respectively. The impressive results came with a gradual increase in difficulty.

A Korean fan noted: "Winning against a third-tier team isn't saying much, but continuing to beat a K League 2 and K League 1 side shows Vietnam's real improvement." Another view suggested that Coach Kim Sang Sik's choice of opponents was sensible, allowing players to get used to the speed, pressing, and physical intensity of Korean football.

Another comment said: "Kim Sang Sik knows Korean football well, so he knows how to prepare Vietnam for different opponents." A fourth fan remarked that Vietnam's team not only cares about results but also used the three matches to experiment with lineups, review personnel, and adapt to pressure. This is a sign of a well-prepared squad.

Attention grew even more since Vietnam and Korea are in the same Group E at the 2027 Asian Cup. One fan commented: "Vietnam came to Korea for early training, showing they want to understand how local teams operate." Another warned: "Korea is still much stronger, but you cannot underestimate a team led by a Korean coach like Kim Sang Sik."

The naturalized Brazilian players—Hoàng Hên, Xuân Son, and Tài Lộc—also became key highlights. One opinion stated: "Vietnam gains extra strength, technique, and the ability to create breakthroughs from the Brazilian-origin players." The combination of new recruits with local mainstays could make the team more diverse in attack, especially in transition phases.

Friendly matches do not fully reflect the strength of Korean clubs, as their lineups and objectives may differ. Nevertheless, winning all three games against three levels of Korean football remains a positive warm-up. . The Vietnam national team shows confidence, squad depth, and serious preparation ahead of the 2026 ASEAN Championship, while also sending a warning to rivals at the 2027 Asian Cup.