Coach Kim Sang Sik Returns to South Korea After Bereavement: The One-Week Gap Ahead of ASEAN Cup 2026

The Vietnam Football Federation's statement arrived quietly. Coach Kim Sang Sik has returned to South Korea following the death of his father, who passed away at the age of 84 after a long illness. VFF President Tran Quoc Tuan instructed the federation to support him, allowing him to go home and complete funeral arrangements, with an expected return to Vietnam in about one week.

On first reading, this was sad news. On the third reading, something else stood out: the timing. Only nine days after the head coach departs, Vietnam will play their opening match of the ASEAN Cup 2026. The tournament kicks off on September 24, 2026. Vietnam sits in Group A alongside Thailand, the Philippines, and Pakistan.

After six years sitting on the touchline recording every foul for Ligue 1 disciplinary reports, I learned one thing: the smallest details are often the mesh of the net that holds the biggest fish the crowd overlooks. A one-week absence of the head coach during the final preparation phase is exactly such a detail.

An Overlooked Context

Kim Sang Sik took charge of the Vietnam national team in May 2026. Over two years, both the senior team and the U23 side have made steady progress in regional and continental competitions. He is known as a relentless worker, almost living inside training sessions and video analysis rooms.

His father passed away at home. For a Korean living far from home, returning for funeral rites is non-negotiable. The VFF understood this, and their response - swift, dignified, unconditional - is a notable governance signal.

But this is a period where every training day carries its own value. The ASEAN Cup does not give national teams the long preparation runway of a World Cup qualifying campaign. Short regional tournaments typically compress the entire tactical workload into the pre-tournament camp window. One week is a significant share of that window.

Vietnam share Group A with Thailand, the Philippines, and Pakistan. The group contains one major rival - Thailand - and two opponents Vietnam is generally rated above. The typical regional script: results are decided in the direct clash with Thailand. And that match is usually settled by tactical details, not inspiration.

Analysis: A Measurable Gap

In modern national-team football, a head coach does not simply stand on the pitch during training. Their role includes building match plans, analysing opponents, testing tactical variations, and organising set-piece sessions. At national-team level, this workload is usually compressed into short camps. When the head coach is absent for a week during the final stretch, three risks typically emerge.

First, training rhythm. National teams often rely on assistants to maintain intensity when the head coach is away. But the final decision on volume and content still rests with the head coach. A week without that final voice can cause either a slight drop in intensity, or the opposite - assistants over-pushing to prove themselves. Both directions carry risk.

Second, unfinished tactical installation. If Kim planned to trial a new approach for the Thailand match, this was the week to do it. Missing that week may force him to fall back on a more familiar, safer plan upon return. Sometimes that is not bad, but it differs from the original plan.

Third, the psychological and emotional factor. A head coach returning after a bereavement cannot immediately reach peak focus. Sports psychology research has shown that the grieving process can affect decision-making in the first few days back. Nobody wants to say this aloud, but professional national teams know it.

The Contrarian View

There is another way to read this situation, and it is not pessimistic at all.

In sport, a leader's absence sometimes produces the opposite of the usual worry. Players, especially younger ones, tend to try harder when they sense the difficulties of the person leading them. The "playing for the manager" dynamic is widely documented. If the assistants and team management communicate the head coach's circumstances properly, the dressing room may gain a spiritual motivation that cannot be measured in numbers.

More importantly, this is also a test of structure. A mature national team does not depend entirely on one individual. If, during this week, the coaching apparatus runs smoothly and players maintain discipline and workload, that is a positive signal about organisational depth. Conversely, if everything falls apart for lack of one person, that is a structural issue, not a personal one.

I made a mistake during the 2026 World Cup qualifiers when I recorded a midfielder's foul count without cross-checking enough sources. The report was returned, and I spent four weeks reviewing the entire footage to correct it. The lesson remains intact: my error in the 2026 World Cup qualifiers taught me that the report is never written in advance. In Kim Sang Sik's case, no one has the right to conclude before the final whistle blows at the ASEAN Cup. We only know for certain when the match ends, not when the page has already been filled.

What to Watch and a Thought Ahead

Three signals to observe in the coming days. First, confirmation of the head coach's return date. If he returns on schedule after about a week, the team still has nearly ten days to complete preparations - a manageable margin. If the absence extends, preparation pressure shifts from "manageable" to "concerning". Second, training reports: does the team maintain tactical workload, or only physical training to hold rhythm? Third, Kim's own statements upon return - whether he mentions any adjustment to focus and mindset. My 2026 World Cup monitoring method is a net: small mesh, no fish missed. This time, the net must be cast the same way.

The Vietnam national team is entering a tournament where they are expected to go deep. That expectation does not change because of a bereavement - but how the team handles the absence of its leader may say a great deal about the character of the whole collective. In football, teams sometimes grow stronger not because they have enough people, but because they know how to stand firm when one is missing. The answer will come from the pitch, at the exact moment it always comes: after the final whistle.