Vietnam U23 leave for Japan after a single training session: the verdict was written before kick-off

One session

On the afternoon of September 12, Olympic Vietnam closed the only training session it would hold before flying out. One session. A few hours on the pitch, a squad not yet complete, the usual warm-up routines and a handful of combination drills at a tempo nobody dared raise. By midday, the first group was at the airport. At around 6 a.m. on September 13, the plane landed in Japan. On September 15, the ball rolls against Kuwait.

I counted three times to make sure I had not misread. No other session. No closed-door friendly. No two-week camp. Twenty-one players in the first wave, two more flying on September 14, and six players leaving the pitch with a V.League match still on their skin, getting into a car, heading to the airport, sleeping on the plane.

That is the whole of the evidence I can verify. It is also the whole of what the coaching staff has in hand before the opening match.

Context

The 2026 Asian Games take place in Aichi-Nagoya, Japan. The men's football tournament opens on September 15 and ends on October 3. Olympic Vietnam sit in Group C with Kuwait, the Philippines and Uzbekistan. The schedule: Kuwait on September 15, the Philippines on September 18, Uzbekistan on September 22. Three matches in eight days, at one base, with venues spread from Nagoya to Toyota, Kariya and Osaka depending on the round.

The target announced by the Vietnam Football Federation before the flight is the quarterfinals. The VFF General Secretary was there to encourage the team. The framing is familiar: leadership states a concrete target, the people underneath must find a way to make it true, and if it does not come true, responsibility tends to fall lower than where it was spoken.

There is a detail alongside that gets less attention. The original report describes a tournament of 15 teams in 3 groups, with the top two from each group advancing to the quarterfinals. The arithmetic does not work: three groups times two places equals six teams, while a quarterfinal round needs eight. Either the real format includes the best third-placed teams, or the information was shortened incorrectly. For a team playing only three group matches, knowing exactly how many points are needed to advance determines how the Uzbekistan match is calculated. I leave the question open, and I would advise readers to leave it open until an official document appears.

I write long pieces to say something short: football is never what you think it is. Here, what people think is an Asian Games campaign. What is actually happening is a national camp split into three waves.

Three waves and one afternoon

The first wave left Hanoi at midday on September 12 with 21 players, after the single session. The second wave did not take the same flight: six players stayed behind for the V.League match between Hanoi and Song Lam Nghe An, five of them on Song Lam Nghe An's books. They played, got into a car, went to the airport. The third wave consists of two players flying on September 14, because their clubs would not release them earlier.

Counted in hours, the squad is only fully together roughly one day before the Kuwait match. One day is enough to take attendance, hand out shirts, hold a preliminary tactical meeting and run a light session. One day is not enough to install any system at all.

I once sat in Kazan, on the evening of June 27, 2026, watching South Korea beat Germany 2-0 while the losing side held 74 percent of the ball and took 28 shots. After that night in Kazan, I stopped believing in philosophy - I believe in what my eyes can see. That rule applies to this piece too: I will not guess the formation, because there is no evidence from which to guess. No line-up, no game model, no role allocation. Anyone who states confidently where Olympic Vietnam will build from, which line they will press in, how they will take corners, is selling goods that are not in the warehouse.

Three things that can be measured

The first is workload. Six players took part in a competitive match, then travelled overnight, landed at dawn, and have at most two days to recover before Kuwait. In professional football, a match plus an overnight flight with no recovery cycle is a soft-tissue risk window. I have watched this kind of schedule for years: injuries rarely arrive in the first match. They arrive in the second or third, when the player is back in rhythm and no longer feels tired.

The second is squad depth. The two latest arrivals are unlikely to reach the same physical and tactical sharpness as the group that travelled first. The most reasonable scenario is that they are used from the bench in the opener. If they start on September 15, that tells you the real depth of this squad is thinner than advertised.

The third is the tactical ceiling. With training time close to zero, no coach chooses a system that demands high coordination. The practical choice is a low block, short distances, priority on transitions and set pieces. It is bland. It is also honest. This team will not be judged on how prettily it plays, but on how few structural mistakes it makes.

A comparison with 2026 is another trap. The side that finished fourth at the 2026 Asian Games under Park Hang Seo was a generation prepared on a different cycle, with a group of players who had already played together at the AFC U23 Championship beforehand. Using that result as the benchmark for a team that trained once is not expectation, it is a comparison with the wrong variable. And above all, the Asian Games is a stage where J.League and K.League scouts still sit and watch. A strong individual tournament here can move a career; a rushed campaign can just as easily freeze one for a year.

Contracts, calendars and what never shows on the scoreboard

The two players released only on September 14 are the most important piece of this story. It is not about two individuals. It is about the relationship between clubs and the national team in Vietnam.

This is a structural problem, not a problem of goodwill. The Asian Games does not sit inside FIFA's international match calendar. That means clubs are not obliged to release players. Everything after that is negotiation: how many days early, who plays which match, who stays until the last minute. The outcome of this year's negotiation is six players boarding a plane after a V.League match.

I did not rebel because of Nguyen Van Quyet, I rebelled because of how we look at contracts. In 2026, when I wrote that Hanoi FC should sell Quyet to rebuild its academy, the captain was 26, had scored 12 goals and provided 7 assists, and hundreds of people came after me. What I said then was not aimed at a player. It was aimed at the habit of placing the entire weight of a cycle on one name, and then, when that name cannot carry it, letting the whole system blame him. A year later, the very generation I pointed to took Vietnam's U23 team to the final of the Asian championship. I tell this story not to praise myself, but to say that I learned to read a football nation through what it chooses not to look at.

A contract is only a promise that has been framed, and the truth always sits outside the frame. The frame here is the calendar. What sits outside it is the reality of 21 days of preparation ground down into a single session.

The question of overage players belongs to the same category and is likewise unanswered. The team is named inconsistently - "U23 Vietnam" and "Olympic Vietnam" appear side by side - which hints that a few overage players may be registered under Asian Games rules. If so, a small part of the problem has been solved with experience. Nobody has announced it, so I record it as an open question.

And this is where I want to be explicit, because I am an Argentine living in Hanoi and I know the trap of that position. It is very easy to hold up European football as the yardstick and conclude that these people are doing everything wrong. I do not do that. In Argentina, clubs also face brutal calendars and also argue with their federation about releasing players. I do not ask why they do not prepare the way others do. I ask: which frame of reference is being used, and who pays when it does not work.

Blind spots

The easiest way to tell this story is to turn "one training session" into an indictment. I used to write that way. At 59, I am not wiser, I am just less afraid of headlines. So I have to state the opposite case: there is a school of coaching that holds that real match rhythm matters more than the number of sessions. Six players who have just played a V.League match may walk into the Kuwait game with better ball feel than those who only trained lightly. If Olympic Vietnam play tidily for 30 minutes and score from a set piece, then what was called a lack of preparation turns out to be a different form of preparation.

I do not buy that reading, and the reason is specific. Match rhythm helps individuals, not collectives. It does not create distances between lines, does not create the convention of who covers for whom, does not create role allocation in set-piece situations. Those three things are bought with shared training hours, not with club minutes. A team can be strong in fitness and loose in structure, and that is exactly the shape I fear most.

But I could also be wrong in the other direction: I am assuming that little preparation time is almost always a disadvantage. Vietnamese football has counterexamples. In youth tournaments, Vietnamese sides have repeatedly shown an ability to organise well at short notice, because a defensive block and collective spirit can be installed faster than a complex attacking system. If the coaching staff pick the right thing to install, one session can be enough for one match, though not for a tournament.

What is missing from the whole story is the dressing room, and I have no data. No captain is named. No information about the relationship between head coach Dinh Hong Vinh and the players. No medical report. For a squad assembled in three waves, internal cohesion is a genuine unknown, and genuine unknowns are usually what decide outcomes at youth level.

The empty stands of 2026 were not a laboratory, they were where football confessed. I remember that whenever I meet a situation where the familiar layers have been peeled away. Here, the layer peeled away is time. When time is peeled away, you stop seeing systems and start seeing people: who takes responsibility, who yields to whom, who runs for whom in the 85th minute.

What will be verifiable

Three predictions that can be checked.

One: Olympic Vietnam will not beat Kuwait through dominance. If they win, the goal comes from a set piece, from an individual moment, or from keeping a clean sheet in the first half.

Two: the two players who fly on September 14 will not start, unless someone in the earlier group is injured. The starting line-up on September 15 will reveal the real depth of the squad.

Three: the match against Uzbekistan on September 22 is the one that is mathematically decisive. Every earlier result only determines how heavy that match will be.

The quarterfinal target still hangs there, between the VFF's stated aim and the afternoon of September 12. All I truly know is that. If I am wrong, the rebuttal will appear on the grass on the 15th, and I will read it with my eyes, the way I read Kazan eight years ago.