Coach Dinh Hong Vinh, the lucky black shirt and U23 Vietnam's puzzle of breaking the low block

Minute 74. I was sitting in front of a screen in a small coffee shop on Jalan Besar street, Singapore. U23 Vietnam had controlled the ball almost completely against U23 Philippines in Group C of the 2026 Asian Games, yet the score remained 0-0. The silence in the shop was so deep I could hear the ceiling fan turning evenly. Then a ball was played into the box, and the net rippled. Minute 74. Twelve minutes later, in the 86th minute, the ball was in the net a second time, and the match closed at 2-0.

I have watched plenty of matches like this. That feeling of waiting for a goal while your team presses and presses but the net stays silent is one of the most tense experiences a football viewer can have. It is like sitting in front of a locked door, knowing the key is somewhere in the stadium but not yet found. This is a match U23 Vietnam finished with a win, but the way they reached that win is the real story.

This is not the first time Coach Dinh Hong Vinh has led U23 Vietnam. He is the man the Vietnam Football Federation hands the caretaker role to whenever Coach Kim Sang Sik is away on national-team duty. Kim Sang Sik, who has just guided Vietnamese football to the 2026 ASEAN Cup title, is seen as the anchor of the whole system. His presence casts a halo that reaches down to the U23 level, and Coach Dinh Hong Vinh is inheriting part of that light.

But the most talked-about story of the match came from a very ordinary detail: the players asked the coaching staff to wear black shirts. Coach Dinh Hong Vinh recounted with a smile that he listened to his students, and it turned out the black shirt brought luck. The media seized on this detail, and it easily became the human-interest story of a match with a positive result.

I understand why this story spread. Vietnamese football has a tradition of humour and warmth like that. But if we stop at the black shirt, we miss the more important part of the story: how U23 Vietnam solved the tactical puzzle against the Philippines, and what awaits them in the final group match.

U23 Philippines played in what analysts call a low block. They dropped deep, packed numbers in their own half, conceded possession to Vietnam and waited for counter-attacking chances. This is no new tactic. It is the classic choice of the weaker side against a higher-rated opponent, and it poses a familiar problem: how to break a dense block without losing balance.

Vietnam's problem for the first seventy-odd minutes was dominant possession without quality chances. The ball circulated through midfield and both flanks, but the decisive balls in the final third lacked sharpness. The 74th-minute goal came after far too many blocked efforts. That is the sign of a problem not fully solved: the ability to convert dominance into clear chances.

More telling is the second goal, in the 86th minute, which came from a different kind of move altogether. Xuan Bac, the midfielder seen as the soul of the engine room, won a challenge and launched a transition. The second goal was not built from controlled possession, but from a counter after winning the ball back. That is the key point that deserves serious attention.

In other words, U23 Vietnam won this match by two different routes: one goal from positional attack, one from a transition. The first released the pressure once the block was broken, forcing the Philippines to push higher and open space. The second showed the ability to punish an opponent's mistake in an instant.

Xuan Bac, from what the match showed, is not a pure playmaker. He is a wide-ranging player who contributes to both defence and attack. That role suits a team playing fast transitions. But it also raises a question of dependency: if Xuan Bac is tightly marked, or cannot play, who creates the moment of difference?

The answer was not in the last two matches. And that is why the Uzbekistan game is more intriguing than any other group fixture.

According to analysts, Uzbekistan is a well-organised side with good technique and superior physicality. This is exactly the type of opponent a team struggling to break low blocks must overcome. Unlike the Philippines, Uzbekistan does not only defend. They can attack, and they will not let Vietnam dominate possession easily.

One detail is telling: U23 Vietnam now has four points from two matches and sits in a favourable position in Group C. The coaching staff have also sent people to watch the Uzbekistan-Kuwait match live to gather information before the decider. That is the behaviour of a team that understands qualification is not yet settled, and that every calculation must rest on concrete facts.

What Coach Dinh Hong Vinh stressed after the match was rest and recovery. That is a notable signal. It shows the staff know that in the final group match, fitness may be decisive, not tactics alone. Against an opponent rated highly for physicality like Uzbekistan, fresh legs may matter as much as the formation.

The black-shirt story is pleasant. It warms up a win, and it shows a dressing room with a high degree of cohesion. When players can ask their coach to do something for luck, and the coach happily agrees, it signals a relaxed group where hierarchy is not too rigid. I believe in the value of such cultural signals. In football, a healthy dressing room is often the foundation of durable results.

But if we read the match only through the black shirt, we confuse the colour of luck with the structure of the problem. Luck does not create a 74th-minute goal. Patience in attack and the ability to break a low block do. And U23 Vietnam took seventy-four minutes to do that, against an opponent that was not particularly difficult.

That becomes more concerning when Uzbekistan is next. A team that can only break a low block after seventy minutes will struggle against an opponent that defends well and attacks sharply. The Philippines match was a light test. The Uzbekistan match is the real one.

One must also raise the question of Coach Dinh Hong Vinh's role. He has been given the caretaker job repeatedly, and that reflects a deliberate structure at the Vietnam Football Federation: Kim Sang Sik is the anchor of the senior team, while Vinh keeps rhythm for the youth campaigns. This is a reasonable organisation, but it also creates ambiguity over long-term ownership of the U23 project. If positive results continue, the question of Vinh's longer-term path will become hard to avoid.

There was a silence in the match I still remember: the moment between the 74th and 86th minutes, when U23 Vietnam stopped waiting and attacked in waves. Two goals in twelve minutes is no coincidence. When a low block breaks, the opponent must push up, and space appears. The problem is that Vietnam need to break that block earlier, before the match enters a phase where fitness and luck become the dominant factors.

What U23 Vietnam need to learn is not how to create luck, but how to create the moment that breaks the low block sooner. If they can do that against Uzbekistan, they will not need to wait until the seventy-fourth minute. And if they cannot, the black shirt will remain only a pretty memory of a hard-fought win.

The ball slows when the 90+2nd minute knocks on the door. But in a tournament where four points are not enough for comfort, U23 Vietnam understand that the Uzbekistan match is the one that truly shapes their fate. The writer, too, is chasing a ball, with words, and the answer will only come when the ball rolls on the pitch.