N/A – When Vietnamese Football Is Analysed on Belief Instead of Data

On the night of 12 January, I opened a document sent from an analysis group in Hanoi to Shanghai. The report had nine sections: tactics and technique; club finance and the transfer market; results cycles and public opinion; league landscape and team positioning; rules and governance; coaching staff and dressing room; risk profile; media narrative and expectations; and the football industry transmission chain. Each section had tables, input fields, and a line for the final analytical conclusion. And every field carried the same phrase: “N/A – insufficient information.”

Nine sections. Not a single figure. Not a single name. Not a single date.

What kept me sitting there longer than necessary was the honesty of the person who wrote it. He had plenty of room to invent. A transfer fee, a coach's name, a percentage of broadcasting revenue — fill it in and you are done, and almost nobody can verify it. Instead he wrote “insufficient information” twenty-seven times, and added one line at the end: “Without the source content, there is no analysis.”

I read that line three times. After twenty-eight years in this trade, I realised I had just found the truest sentence about Vietnamese football journalism that I have read in years.

My job is to travel with teams. From Shanghai I report on football for the Chinese market, but my roots are on the other side of the border. Over the past two years, Vietnamese football has lived through its most emotionally intense cycle in more than a decade.

In March 2026, the national team lost 0-1 to Indonesia in Jakarta, then lost 0-3 at My Dinh. Coach Philippe Troussier left. In June 2026, Vietnam were officially eliminated from qualifying for the 2026 World Cup, finishing behind Iraq and Indonesia in Group F of the second round. In May 2026, Kim Sang-sik was appointed. Seven months later, on 5 January 2026, at My Dinh, Vietnam beat Thailand 3-2 in the second leg of the ASEAN Championship final, winning 5-3 on aggregate and claiming a third Southeast Asian title. Nguyen Xuan Son scored seven goals, was named player of the tournament, and broke his leg in that very match.

Ten months. The same federation. Largely the same people. The starting point was called an “identity crisis”. The finishing point is called a “golden generation”. If you read back all the articles, comments and talk shows from that period, one uncomfortable detail stands out: almost no metric was published at any point. No pressing data. No publicly shared heat maps. No expected-goals model used to explain why a defence that conceded three goals at My Dinh stood firm at the very same stadium ten months later.

Only conclusions. A great many conclusions.

Which is why that nine-section report made me stop.

Anatomy of a transfer rumour

Follow a rumour from its birth to its death. It starts with a phone call. An agent calls a journalist he knows and says his client is being watched by a V.League 1 club. No paperwork. No formal offer sent. Just a phone call — exactly the material an agent needs to put pressure on another club.

Within two hours the information is on a fan page. Within four hours, three other fan pages have reposted it, each adding a detail. Within six hours, a YouTube channel has built a seven-minute video with graphics, a photo of the player photoshopped into new colours, and a red line at the end: “OFFICIAL YET?” By evening, the community has split into two camps, one believing and one objecting, and both arguing with exactly the same lack of evidence.

That transmission chain has four links: the agent, the journalist, the fan page, the community. None of them is obliged to verify the one before. Each only needs to believe that the previous link already verified it. The cost of publishing something false is close to zero. The cost of publishing something true is, by contrast, very high: you have to make calls, you have to wait, and you have to accept that you may have nothing to publish that day.

This is why I tell young people entering the trade something they rarely enjoy hearing: the value of a journalist lies not in the number of stories he publishes, but in the number of stories he refuses to publish.

The only trustworthy figure in most Southeast Asian deals is the number on the contract, and it is almost never disclosed. Everything else is decorated guesswork. When a newspaper writes “the transfer fee is believed to be around X”, the words “believed to be” are the entire legal value of that sentence. And two weeks later, once the rumour has dissolved, those words vanish from collective memory, leaving a source-less number that keeps being cited as a fact.

This mechanism is not unique to Vietnam. It simply runs faster here, because the verification barriers are thinner and the number of distribution channels is larger. When twenty channels carry the same false story, the false story starts to look true.

What is actually measured in the V.League

Over the past six years I have had access to the technical areas of several clubs in China. There, most Chinese Super League clubs have equipped players with positioning systems in training and matches. Running distance, number of accelerations, pressing distance and the position of every player on the pitch are pushed to the analysis centre within hours of the final whistle. The coaching staff open the dashboard, read it, and decide.

In V.League 1, with its fourteen clubs, the number of organisations with an equivalent system can be counted on the fingers of one hand. Most still rely on video, on an assistant coach's eye, and on manual statistics: passes, tackles, pass completion rate. Those three metrics, notably, describe nothing at all about how a team moves. They only say who touched the ball and whether it worked out.

The consequence is a professional paradox. Most of what is called tactical analysis in Vietnam is eye-test observation wearing the clothes of terminology. Without data, a writer is forced to use language to manufacture a sense of precision. “High pressing” becomes an adjective rather than a metric. “Controlling the game” becomes a feeling rather than a count of minutes spent in the opponent's final third. “A deep defensive block” becomes a remark rather than the average distance between the back line and the goal.

This does not make those observations wrong. An experienced coach can watch ten minutes and know whether the opposing defence is pushing up. The problem lies elsewhere: such observations cannot be verified, cannot be compared across matchdays, and cannot be handed on to the next person. They live and die with the person who spoke them.

I am not criticising the writers. They write inside a system that does not give them data. But precisely for that reason, the line “N/A – insufficient information” in that report carries something close to moral value. It is a confession that at a specific moment, we do not know what is happening.

The two real variables of autumn 2026

If forced to identify what genuinely changed between March 2026 and January 2026, I would pick two things, and both are observable, both describable in plain language without borrowing European terminology.

The first is a person. Nguyen Xuan Son, formerly Rafaelson, scored more than thirty goals in the 2026/24 V.League season for Thep Xanh Nam Dinh — the season in which the northern club won its first national title in nearly four decades. He was naturalised in September 2026 and made his national team debut soon after. What he brought was not individual technique. It was something far simpler: the ability to convert chances.

In football, every team creates a limited number of chances per match. If the conversion rate rises, the entire structure of the game shifts: the midfield no longer has to gamble, the defence no longer has to push up, and a team can play counter-attacking football and still win. A striker at that level changes the formula for the whole collective, and no mathematical model is required to see it. You just have to watch ten matches.

The second is structure. Kim Sang-sik gradually moved the national team to a back three, with the two wing-backs playing a pivotal role. That shape allowed Vietnam to keep numbers in central midfield when they lost the ball while still having enough bodies to counter. Players such as Do Hung Dung, Nguyen Hoang Duc and Nguyen Quang Hai were placed in positions requiring fewer duels and offering more space. Nguyen Tien Linh and Pham Tuan Hai shared the roles up front, depending on the opponent and the state of the match.

Neither change was recorded in public data at the moment it happened. Nobody published the number of minutes the team played with a back three. Nobody measured the distances between the lines. When the team won, people called it character. When the team lost, people called it identity. In neither case did they call it a technical choice.

The word “identity” deserves its own sentence, because it is the most dangerous term in Vietnamese football vocabulary. It cannot be verified, cannot be refuted, and can be used to explain any result in either direction. A team wins because it has identity. A team loses because it has lost its identity. No test can distinguish between those two statements.

The 3-5-2 revolution does not begin with players; it begins with eyes that know how to look far ahead. In Vietnam, those eyes exist. What is missing is a system that records what they see, so that it does not depend on who happens to be sitting at the analysis desk that day.

The Vietnam–China bridge carries more than players

I live in Shanghai, and the shortest distance between the two football nations is not the border. It is information infrastructure.

China has many problems, but in football data it is a long way ahead. Lower-tier competitions produce regular technical reports. Academies have entry standards for fitness, speed and decision-making. Chinese sports media can cite figures from datasets that Vietnamese colleagues have no access to. That difference does not come from money. It comes from habits of governance.

In the opposite direction, Vietnamese football has something many major football nations are losing: a community so attached to its national team that people will wait for hours in the rain, clear the rubbish from the stands after a match, and remember exactly who came on in the 78th minute of a game ten years ago.

If the two sides could trade what they have, both would gain. The problem is that in Vietnam, most of that exchange has taken place only at the level of players and coaches, not at the level of data and information governance. We import centre-backs, we import strikers, we import fitness specialists. We have not imported process.

In the summer of 2026, the World Cup finals will take place without the Vietnamese national team. A gap like that is always filled in one of two ways: with work, or with noise. The first requires years. The second requires one evening.

The counter-intuitive view

The common framing of this problem is that “Vietnamese football lacks data”. That is true and also meaningless, because everybody knows it. The real problem lies on the reader's side.

The sports media market rewards certainty, not accuracy. An article saying “there is not enough information to conclude” will be judged a bad article. An article asserting “the deal is done, the fee was 800,000 dollars” will be shared eight thousand times, even if it is completely wrong. Belief in a false conclusion feels safer than accepting a gap.

The transfer market is where promises are signed in ink, while trust is signed in blood. In a market like that, humility becomes a competitive disadvantage, and honesty becomes a business cost.

The second counter-intuitive point is harder to hear. Importing European metrics into the V.League can produce a new, better-equipped form of ignorance. An expected-goals model built on Premier League data does not accurately describe a V.League match, where the pitch, the weather, the congested calendar and the way matches are officiated are all different. Applying a tool trained in one environment to another yields numbers that look highly professional and are systematically wrong.

I am not against data. I am against borrowed data. A metric without local context is an opinion written in numbers, and it is more dangerous than an ordinary opinion, because it wears the appearance of science.

What I want to say to young people starting to write about Vietnamese football

That nine-section report with twenty-seven instances of “N/A” will never be shared. It has no catchy headline, no name, no number to quote. It will sit quietly in a folder and nobody will remember it. But it is the most honest document I have received this year.

On the empty-stadium days, I can hear the team breathing – and it is still beating. Hearing that breath demands something unglamorous: the patience to stay a little longer than everyone else, to make one more phone call, and to accept that there will be days when you write nothing at all.

If the next generation writing about Vietnamese football builds one small habit — state the source, state the date, and write “not enough information” when there genuinely is not enough information — then in ten years we will have a football culture described far more accurately, and a generation of fans who understand that a conclusion is not always required in order to understand a match.

No database ever began with a claim. They begin with an acknowledged gap.