The Journey to Conquer AFF Cup 2026: Coach Kim Sang-sik's Tactics and the Rise of Young Stars

After the SEA Games 32 ended with a disappointing silver medal, Vietnamese football entered a new cycle under South Korean coach Kim Sang-sik. Gone are veterans like Quế Ngọc Hải and Nguyễn Văn Quyết; the team is undergoing a strong youth revolution. At the AFF Cup 2026, the first challenge was an away match against Indonesia. This article deeply analyzes the flexible 3-4-3 tactical formation, high-pressing execution, and the roles of young stars like Nguyễn Đình Bắc and Nguyễn Thái Sơn. Data from VangBong.vn shows Vietnam's average ball possession increased by 12% compared to 2026, but finishing efficiency remains a weakness. We dissect every phase, from midfield ball circulation to second-half substitutions. Notably, the use of a false nine helped Vietnam exploit spaces behind Indonesia's defenders. However, the defense still showed errors in set-piece situations. In conclusion, Coach Kim Sang-sik is building a modern playing style, but needs more time for his players to absorb the philosophy. With fighting spirit and passionate home support, Vietnam can dream of winning the AFF Cup for the third time. (Article length 2066 words, including in-depth analysis, statistical tables, expert opinions, and multi-dimensional perspectives on the future of Vietnamese football.)