The Beat from Busan: A Korean Man Cried for Vietnamese Football

On the evening of January 5, 2026, I sat in a small restaurant in the Suyeong district of Busan. On my phone screen was the second leg of the ASEAN Cup final between Vietnam and Thailand. Beside me, the restaurant owner — a Korean man in his sixties who had never watched a full Vietnamese football match — put down his chopsticks and stared at the screen. When the final whistle blew and Vietnam were crowned champions, he turned to me, eyes red, and asked in a mix of Korean and English: "Are they Korean?"

I shook my head. But I understood why he asked. The man leading that team was a Korean coach — Kim Sang-sik. In that moment, two football cultures, two layers of memory, touched each other. "A Korean man cried for Vietnamese football. That is a shared rhythm."

I wrote that moment down in my second notebook. Three lines. No analysis. Just a small note reserved for the things that never show up on the scoreboard.

I have spent nearly two decades sitting in the corner of training grounds, recording what the cameras never catch. Since 2026, when I became a training-ground observer for Busan IPark in K League 2, I have learned one thing: a team does not run on a formation, it runs on relationships. "The stadium has no crowd, but I still hear the pulse of the match." That is why I do not write about dry tactics, but about people.

To understand why that moment in the restaurant matters, it must be placed in the context of an entire journey. The 2026 ASEAN Cup — also known as the Mitsubishi Electric Cup — took place from late 2026 into early 2026. Vietnam entered the tournament with a new coach, a Korean named Kim Sang-sik, appointed in mid-2026 after a difficult run under Philippe Troussier.

This context matters, because it decided everything. When a team changes coach, the first thing to change is not the formation but the atmosphere in the dressing room. I witnessed this at Busan IPark in the 2026 season, when coach Kim Do-hoon applied a 4-2-3-1 from March and kept it for seven straight months. That team scored 52 goals in 36 matches but finished third, missing promotion by exactly four points. The numbers do not tell the whole story. What I remember most is the instability between two foreign players in the dressing room — something I did not dare write about directly, only noting it in my private diary.

With the Vietnam national team, Kim Sang-sik arrived in a similar situation: a group that needed healing more than restructuring. He did not bring a tactical revolution. He brought stability. And that, in my view, was Vietnam's single most correct decision of that year.

Vietnam's road through the 2026 ASEAN Cup was no red carpet. In the group stage there were matches where the team struggled to hold its rhythm. But what I observed — through every bulletin, every interview, every shot from the technical area — was how the team reacted after conceding. They did not panic. They slowed down, kept the ball, and waited. That is the mark of a group that trusts one another.

The biggest attacking anchor was Nguyen Xuan Son. The naturalized striker scored crucial goals in the knockout stage and became the spearhead every defence had to watch. But in the first leg of the final, when he scored and then suffered a serious injury, the whole team faced a big question: how do you play when you lose your number one striker? The answer came in the second leg.

The first leg of the final at Viet Tri ended in a 2-1 win for Vietnam. Three days later, in Bangkok, Vietnam beat Thailand 3-2, closing the final 5-3 on aggregate and lifting the trophy. This was Vietnam's third ASEAN Cup title, after 2026 and 2026.

But the 5-3 scoreline, in my view, is not the most memorable thing. The most memorable thing was how the team played without Nguyen Xuan Son in the second leg. They chose a different rhythm — slower, steadier, more connected. "Every player has his own rhythm. I only look for where it begins." And in that second leg, the team's rhythm began in midfield, from the calm ball control of Nguyen Quang Hai and Do Hung Dung, not from individual bursts.

That is what I want to spend most of this piece on. Not the goals, but how a collective chooses its rhythm when it loses its main scorer.

On the data side, this title marked an important milestone: Vietnam won a regional tournament for the first time under a Korean coach. Kim Sang-sik became the first Korean manager to lead Vietnam to an ASEAN Cup crown. That is a historic fact, and it explains why Koreans in Busan reacted so emotionally.

But there is something Korean coverage often overlooks. They frame this win as the story of a Korean coach succeeding abroad. That is true, but not enough. The real story lies on the other side: a Southeast Asian football culture bold enough to trust an outsider, and an outsider bold enough to give that trust back.

I remember another evening in Busan, in the summer of 2026. I had just returned from the World Cup in Russia, where I stood in the mixed zone in Kazan and watched South Korea beat Germany 2-0. In the 90th+3rd minute, Kim Young-gwon scored the opener. After the match, I caught the words of the then-South Korea head coach: "We won because the players trust each other." One short line. But it stayed with me for years.

Six years later, that line repeated itself — only this time in Vietnam's red shirt. That is no coincidence. It is the law of football: teams that trust each other go further than teams that are talented but fragmented.

Now I want to raise another angle — one I believe many Vietnamese fans are misreading.

There is a popular notion that the 2026 ASEAN Cup win was the result of a superior wave of reinforcements, especially the naturalization of Nguyen Xuan Son. That argument is not entirely wrong, but it puts the emphasis in the wrong place. If a single good striker were enough to win Southeast Asia, many teams in the region would have done it long ago. What decided it was not the arrival of an individual, but how the collective accepted and integrated that individual into a shared rhythm.

And here is the crux that I believe many people overlook: it was precisely the loss of Nguyen Xuan Son in the second leg that exposed the team's true strength. A weak collective collapses when it loses its spearhead. A strong collective adjusts its rhythm. Vietnam adjusted. That, not the medal, is the valuable signal for the future.

I call this the counter-intuitive view because it runs against the media's instinct to celebrate individuals. But from years of watching matches, I am convinced: a team that depends on one player will be dragged down by that very player when he is absent. A team that distributes its rhythm is the one that lasts.

There is one more point. Coverage often says Kim Sang-sik "imposed a Korean style" on Vietnam. I do not think so. I think he did the opposite: he learned to let the team find its own rhythm. "Busan is not the stage lights, but it taught me how to keep the beat." A good foreign coach does not impose. He listens, then adjusts.

What I want to stress — and this is the part I will dare to call the "rarely spoken angle" — is the emotional link between the two football cultures. When Vietnam won with a Korean coach, Koreans did not just see a compatriot succeed. They saw a story they could empathize with: a small Asian nation, once underestimated, trying to stand up. Vietnamese and Korean football share the same kind of memory — the memory of being treated as outsiders, then slowly proving otherwise.

That is why the restaurant owner in Suyeong cried. Not because he understood tactics. But because he saw himself in it.

I do not know what comes next. Football is always like that — you never know for sure. A regional title does not automatically become a World Cup ticket. I have seen too many teams rise and fall after a peak moment to be cautious enough not to promise anything.

But I do know what I will be watching for. Not the results of friendly matches. Rather, how Vietnam reacts in the first half of the first match in which they fall behind. How a team keeps its rhythm when trailing will reveal whether the recent title was a moment or an identity.

As an observer, I have always believed the answer to every question about a team lies in the smallest details: the look of a substitute when a teammate goes on, the shouts in training, the way a captain puts his hand on a younger player's shoulder. These things never show up on the scoreboard. But they decide everything.

And as I sit in the quiet corner of a Busan training ground, writing the last lines in my notebook, I hear that pulse still there. From Viet Tri to Bangkok, from Bangkok to Busan, that pulse has never broken. It was only waiting for a Korean man in his sixties to put down his chopsticks, and cry.