Kim Sang Sik and the Silence Before ASEAN Cup 2026: An Empty Whistle in Changzhou

On 19 September 2026, Vietnam's training session at the Changzhou training centre still began at 8 a.m. sharp. But the most important position — Kim Sang Sik's whistle — was empty. Three days earlier, the Vietnam Football Federation (VFF) confirmed that the Korean head coach had returned home after his father died at the age of 84. In elite football, a head coach leaving the training camp just days before a tournament is always a signal worth reading carefully — not to judge, but to measure the void that person leaves behind. I have followed Vietnam's international matches for many years, and one lesson keeps returning: the drumbeat lies not with the referee, but with the breathing of the fans. This time, that breathing turns toward a man carrying his father's funeral through the build-up to ASEAN Cup 2026. The ASEAN Cup 2026, organised by the ASEAN Football Federation (AFF), runs from 24 September to 5 October 2026. Vietnam has been drawn in Group A alongside Thailand, the Philippines and Pakistan — a group where Thailand remains the main rival for top spot. Against that backdrop, every training session matters enormously, because Southeast Asian international windows always compress preparation into a very narrow stretch. Kim Sang Sik was appointed Vietnam head coach in May 2026. Since then, he has worked without pause with both the U23 side and the senior national team, producing positive results in regional and continental competitions. That focus on the job is one reason the VFF keeps faith in him. But football, after all, runs on people — and people have parents, families, and funerals that cannot be postponed. According to the VFF statement, Kim Sang Sik's father passed away after a period of illness. VFF President Tran Quoc Tuan personally encouraged the head coach to return to South Korea to handle the funeral, with a message hoping the family would soon find the strength to get through this immense loss. Kim is expected to spend about a week in South Korea before returning to Vietnam. I went to Euro 2026 with a pen and came back with a stadium inside my heart. From that tournament I also learned that a match truly begins the moment you walk through the stadium gate. A head coach stepping away from camp — even for only a week — before a national-team tournament is not unusual. But it must be placed within two clear frames: the tactical impact on the team, and the psychological impact on the decision-maker himself. On the tactical frame. In a tournament like the ASEAN Cup, most preparation happens in the two or three weeks before the opening match. Tactical drills — block pressing, set-piece design, transition systems — are typically compressed into this window. If Kim Sang Sik is absent for about a week and returns only days before the opener, Vietnam can still finalise the last drills, but will lose live sessions with direct feedback. The real question is the quality of the replacement sessions during his absence. A point that fast news often skips: this situation does not raise questions about the quality of the assistant staff. At national-team level, assistants know the weekly syllabus and can maintain training intensity. The issue lies elsewhere — with the moment-to-moment tactical decisions only the head man can make. A reshuffle in midfield, a two-striker experiment, or the call to push the pressing block high against Thailand — those belong to the head coach. On the psychological frame. I have interviewed many players and coaches after personal loss. There is one interview I will never forget — because I asked nothing at all. The person simply sat, and I understood that some silences hold more truth than any question. A coach's ability to focus while mourning his father is a variable that no data can measure. Some turn work into a shelter; others need more time to rebalance. Kim Sang Sik — known for his dedication and intense focus — may lean toward the first, but that is inference, not conclusion. In this context, I pay particular attention to the message the VFF sent. It set no performance expectations. The statement revolved only around sympathy and the wish that Kim Sang Sik's family would soon overcome their loss. In a football culture where results pressure often dominates, a federation putting the human factor first is a signal worth noting — though it does not lower the real pressure once the tournament begins. But here is where I push back on the common reading. Many will say: the VFF is classy, Kim is dedicated, everything will be fine, don't worry. I find that reading too easy. Public sympathy for a head coach will hold — and that is right on a human level. But it will vanish the moment Vietnam drops points against an underdog, or when a group-stage exit unfolds. In Southeast Asia, sympathy has a shorter lifespan than one media cycle. The blind spot of this story is not how long Kim is away, but that we still have no information about the training plan he left behind. The statement does not mention whether he prepared a schedule for the assistants. If he did, the team is in better shape than it appears. If not, the gap is bigger than seven days. A second blind spot: this is a group that includes Thailand — Vietnam's strongest rival. The match against Thailand will likely decide the group, and those are exactly the games that demand the most detailed preparation. In 2026, the stands fell silent, but tweets clapped in turn. I learned that year that the migration of fans into digital space does not weaken the heartbeat, it only makes it clearer. This time, that heartbeat turns toward a man carrying his father's funeral, and also toward the question of whether Vietnam has enough internal depth to hold its rhythm until 24 September. That question will only be answered by the first training sessions after his return.