Vietnam stick with familiar core for FIFA ASEAN Cup: Kim Sang Sik's calculated gamble

Five days. On the fourth day of the training camp, I sat in the lowest row of the auxiliary stand, watching Vietnam run its left-flank combination drill. No Nguyen Van Vi. No Nguyen Hoang Duc. Only the familiar core remained, repeating the same patterns I have counted no fewer than thirty times over the past two years. And one number kept returning to me: five days of preparation. Not five weeks.

That is the entire window the Vietnam Football Federation has given head coach Kim Sang Sik before the Philippines match. Five days to recover, revisit old patterns, and finalise the squad.

The context few want to face

Vietnam enter the tournament as regional defending champions. It is staged in Indonesia, kicks off in late September, and carries the FIFA ASEAN Cup branding, a governance shift from previous ASEAN Championship editions. On paper, that reads like the position of a strong side.

But one detail gets skipped: the record shows Vietnam's performances at the most recent ASEAN Cup were less than convincing. They won on results, not on process. In football, when results outrun performance, the trophy hides cracks that were never sealed.

Fans have already seen those cracks. They said it plainly: they want to watch Vietnam play differently.

What is actually happening on the training pitch

Kim chose to keep the core. On the tactics board, that is not laziness, it is the logical call when you have five days. Players who already know the system understand the pressing demands and each other's positions in every transition, without relearning from scratch.

But the cost comes in two parts.

The first is Nguyen Hoang Duc. In Kim's system, he is not merely a midfielder. He is the anti-press valve, the man who receives under pressure, turns, and converts a trapped situation into an escape pass. He sets the tempo. Without him, Vietnam lose controlled possession and, by reflex, slide toward a more direct game: long balls, fast transitions, aerial routes.

That leads to a consequence few bother to dig into: when you abandon control, you hand the ball to the opponent more often. Against a side that defends in an organised mid-block, that means walking your backline into a wall.

The second is Nguyen Van Vi. He is not purely a defender. He is the hinge of the left-flank channel, attacking, recovering, creating overloads. Without him, the team does not lose a left-back; it loses an entire process.

The man pushed up is Cao Quang Vinh. Sources describe him as a different dimension, meaning a change of personnel, not a change of mould. The issue is not quality but mechanism: a player with a different profile cannot simply slot into a slot programmed for the old one.

Where the gap really sits

Based on my experience covering matches, a side relying on a familiar core in a short tournament tends to convert chances at a higher rate in the group stage, then drop sharply in the knockout rounds. The reason is simple: the deeper you go, the more footage opponents have to solve you, while you have no time to reinvent yourself.

That turns stability from a strength into a conditional weakness. When everything goes to plan, it looks like professionalism. When rhythm breaks, it looks like conservatism.

This is where I start to worry. The real story is not whether Kim keeps the core. The real story is who sets the tempo once Hoang Duc is not there. In the current list, Vietnam have no second midfielder at the same level at beating the press. Creation will be funnelled into a single point, and at the top level, single-point dependency is the fastest route to being neutralised.

One more variable is rarely mentioned: the FIFA ASEAN Cup branding may carry a different registration window and squad deadline than previous editions. If so, Adou Minh and Kyle Colonna recently obtaining Vietnamese citizenship is not merely a personnel story but a governance move whose eligibility must be verified before it counts toward squad depth.

But I might be wrong

I have to be honest with myself: if the absences of Hoang Duc and Van Vi are only shadows in the preparation picture, the whole argument above collapses. The information on both players arrives in hedged language, possibly or reportedly, not confirmed by the camp.

And I remember that I have shouted louder than I have looked closely. The referee is never wrong, the law just cannot keep up with the ball, but the writer can be wrong, and usually is when certain about something he only guessed.

One more thing: the trip to Indonesia, where the host has the stands behind it, is not a small variable. A team with almost no preparation, playing away, in a short tournament, can break in the twentieth minute. If that happens, every tactical analysis becomes meaningless in the face of emotion.

What is left

I do not need the whole world to nod, I only want someone to stop and listen, and what I want you to listen to this time is not a curse but a test that can be answered.

Watch two things. First, Vietnam's vertical passes per 90 minutes against the Philippines. If that number spikes against the last edition, Hoang Duc is genuinely absent and the team has slid into a direct game. Second, watch the left flank in the first 20 minutes: if that channel leans defensive rather than attacking, Cao Quang Vinh is playing safe, and Vietnam have lost a weapon.

Football is not fair, but it is that unfairness which weaves legends. What matters is whether this team is writing a new legend, or leaning on the memory of an old trophy. The answer will come from the bench, and from whether Kim Sang Sik dares to change mid-match.