Without Xuan Son, Vietnam's Attack Collapses at the Build-Up, Not the Finish: Expert Doan Minh Xuong Pinpoints the Structural Failure

Vietnam's 0-2 defeat to Thailand did not begin in the 90th minute, but with a long-range strike from Sarach Yooyen — the opening goal that observers classify as a low-probability event, difficult to repeat. What matters more than the scoreline, however, is how Vietnam's entire attacking function disappeared once Xuan Son was absent. Expert Doan Minh Xuong, speaking to Tuoi Tre, summarized it plainly: "Without Xuan Son, Vietnam's attack is clearly much weaker." Read correctly, this is not praise for a prolific goalscorer. A point on sourcing first: several outlets used the name "FIFA ASEAN Cup 2026," while the AFF organizes the ASEAN Championship (formerly the AFF Cup). There are also timeline inconsistencies between group-stage references and mentions of finals. This concerns source precision rather than the substance of the analysis, but readers should verify against official AFF releases before citing. The match context: Vietnam held more possession but saw chances limited to long-range efforts. Thailand sat deep in a low block, then struck on the counter — a textbook "score first, defend the lead with counter threat" pattern, executed with discipline. Doan Minh Xuong also noted the inversion of Vietnam's natural game state: a side strong in defensive counter-attack was forced to chase an equalizer, neutralizing its best weapon. Two layers must be separated here. The first layer holds: Xuan Son was not only a goalscorer but a functional striker — holding the ball, operating independently, occupying Thailand's center-backs. Losing him degraded the whole attacking chain, not just the finishing. The second layer tells a different story, one that the "no Xuan Son" narrative tends to obscure. Consider the shift from 3-4-3 to 3-5-2, with full-back Cao Quang Vinh deployed in central midfield. That was not a tactical choice but a symptom of a midfield personnel shortage. Coach Kim Sang-sik's need for such measures points to a squad-depth problem, not merely a single absence. Add the reports that most players were not in good physical condition and the squad was incomplete, and the preparation, load-management, and medical processes come under review — not just bad luck. Thailand, by contrast, showed the advantage of depth: substitutions without quality loss, plus Chanathip as a false nine, a flexible solution Vietnam's depleted midfield could not track. In a match between evenly matched sides, small advantages in depth and in-game adaptability often decide the outcome. As for Dinh Bac, the verdict that he "could not do anything" is fair on results but unfair on role. A young forward was placed as a target striker in place of a completely different physical and functional profile. That role mismatch should not be attributed entirely to the individual. What makes the current narrative worth treating with caution is how convenient it is. The entire defeat is attributed to an absent player, while preparation, midfield depth, and system operation receive little scrutiny. The first mistake is not erased; it becomes a record for future comparison — and this comparison reveals more layers than one missing name. The absence of a viable replacement striker is a structural risk, not an individual one. The same situation, two ways of refereeing — the law is never ambiguous, only the person holding the whistle is. Here, however, the ambiguity lies not in the rules but in how a defeat is being read. If Xuan Son's absence is allowed to explain everything, the lessons on squad depth and preparation will be postponed for another cycle. The question worth asking now is not "when will Xuan Son return" but "which system is ready to function if he does not." Discipline exists not to punish but to let the match continue — and for a side aspiring to regional titles, building an attacking plan independent of one individual is no longer optional; it is a requirement.