V-League On-Pitch Violence: The Missed Red Card in Dong Nai vs CAHN and a Broken Feedback Loop

There is a clip of under three seconds from the Dong Nai versus Cong An Ha Noi match on 20 September that I have replayed many times on a screen in Lyon. Huynh Tan Sinh kicks Nguyen Dinh Bac's leg from behind. Dinh Bac goes down. Referee Le Vu Linh shows a yellow card. The match plays on as if nothing needed saying. In the same game, Le Van Son throws an elbow at Dinh Bac. One target, two defenders, two incidents, and both times the man who had to pick himself up was the visiting striker.

I retell it not to open a fresh trial for any individual. I retell it because how a league handles three seconds like that decides the rhythm of an entire season. When I mispronounced a player's name, I learned to listen to the rhythm of a match. Those three seconds, in a game still level, were a rhythm too, and rhythm always leaves traces behind.

Not long before, in round 2 of the 2026-2027 V-League, centre-back Doan Van Hau of Cong An Ha Noi went into a challenge that broke the leg of The Cong Viettel midfielder Doan Ngoc Tan. In the same round, Nam Dinh's foreign player Ezequiel Santos Da Silva stamped on the stomach of SHB Da Nang's Vo Huu Viet Hoang. Add the two incidents at Dong Nai vs CAHN on 20 September and you have four violent acts in three rounds, at least two of them serious injuries visible to the naked eye.

Doan Van Hau's challenge broke Doan Ngoc Tan's leg, an injury that will follow the The Cong Viettel midfielder for months. In my trade, injury has always been a bigger variable than any tactical calculation, and fixture density is the largest cause behind cases like this. When on-pitch violence is added on top, the consequences multiply: an injury caused by a brutal challenge does not just remove one player, it removes an entire tactical option for several rounds.

The system's response came afterwards. Representatives of the tournament organisers, VPF and VFF met the VFF Referees Committee in person. The content of that meeting was compressed into a phrase circulated verbatim: referees must “apply the law correctly”, uphold the league's discipline and stop violent conduct on the pitch. Translated into operational language, it means: no missed fouls, no missed cards.

And here the story splits into two branches that cannot be merged.

On the branch on the pitch, Huynh Tan Sinh's incident was handled with a yellow card. In the reading of Duong Vu Lam, former VFF vice-president for specialist affairs and former head of the VFF Referees Committee, that was a missed call: “Referee Le Vu Linh missed a card in that incident. Huynh Tan Sinh's act of playing the man rather than the ball was far too blatant, yet he did not receive a red card.”

The word I want to stop on is “blatant”. An act of playing the man, carried out twice in succession on the same part of an opponent's body, right in front of the referee, is not a minor detail. It says the offending player believes in a price. And that price, in this incident, was a single yellow card.

The distance between a yellow and a red is not about the colour of the card. With a red, Dong Nai must play the rest of the match with ten men: the defensive block drops deeper, midfield narrows, and the opposing striker finds space behind the centre-backs. With a yellow, nothing changes, and Dong Nai's back line keeps playing exactly the way it chose from kick-off. Football has no luck, only details that have not yet been put in order. A missed card is a detail placed in the wrong slot, and it drags a whole chain of other details out of line with it.

Nguyen Dinh Bac bore that chain. A striker kicked from behind twice without his opponent seeing red plays the rest of the match with a new reflex: receiving with his back to goal, he must glance first; shielding the ball, he must expect pain. Those reflexes appear in no statistical table, but they show up in a striker's rhythm — he releases the ball half a beat early, or does not dare turn.

Le Van Son's incident has a different character. The elbow is the hardest contact to see from the referee's position, especially once the ball has moved elsewhere. That is exactly why VAR teams exist. On an elbow away from the ball, the assistant and the referee usually have no angle, while the VAR team has the time and the camera angles to invite the referee to review it. If that did not happen, the question about the VAR team is no longer limited to the Tan Sinh incident.

On the branch inside the VAR room, Duong Vu Lam pushes the argument a step further. If Tan Sinh is to be banned retroactively for this foul, then referee Le Vu Linh should have his whistle suspended in the same way; the responsibility of the VAR team, made up of Vo Hoai Thuong and Nguyen Thanh Son, must also be clarified. Lam sets out two clear scenarios: if the VAR team advised the on-field referee to show a red card and the on-field referee overruled it, the VAR team did its job; if the VAR team did not advise, the VAR officials must be sanctioned too.

A clean decision tree, two branches, two different outcomes, no grey zone. But one detail makes that decision tree impossible to verify from outside: specific disciplinary rulings against referees are usually not made public. Put another way: the league has built a multi-layered oversight system, and then hidden the results of that very system.

Lam points to the only way to read the outcome: keep an eye on the referee appointments for the following rounds. If those involved are not assigned in the round immediately after the one just played, the likelihood is that they are being disciplined. For someone in my line of work, that is a verifiable signal, and it is worth more than any explanation issued afterwards.

The public's first reflex is to demand that referees be punished. That reflex is understandable, but it misses a more important question: whether the price of violent conduct on the pitch has actually gone up since the meeting between VFF, VPF and the VFF Referees Committee.

Work it out with pure logic. If a defender calculates that his act of playing the man, in the worst case, amounts to a yellow card plus a not-very-high probability of a retroactive ban, then the act is a rational choice on cost. In return, it can neutralise the opponent's main striker for the rest of the match. To change behaviour, you have to change the price. No meeting changes the price as effectively as one correct decision in the next round.

In the other direction, there is a risk rarely discussed. When a league tells referees to “apply the law correctly” without publishing specific assessment criteria, referees tend to compensate the other way: calling handballs more strictly, penalising shoulder-to-shoulder duels, sending players off for contact that would previously have been read as football. At that point the league's problem is no longer violence, but matches broken up by the man with the whistle. Both extremes damage the quality of the competition; they differ only in who has to pay.

There is another asymmetry. The offending player can be suspended, with the charge made public; the referee who errs is most likely dealt with in silence, surfacing only through his absence from the appointment list. A half-transparent system creates two standards of accountability inside the same league. I once got a man's name wrong, but I have never got the essence of a match wrong. The essence here is accountability, and accountability should not have two standards.

I have to state my limits clearly: three rounds and four incidents is far too small a sample to draw conclusions about the entire V-League refereeing system. What I have written above is a hypothesis about behavioural incentives, not an indictment. Verifying it requires a full season of data: the number of red cards shown for acts of playing the man, the number of VAR interventions, and the number of matches in which the on-field referee overruled VAR.

Two things can be verified, and both sit off the pitch.

One signal is the list of referees appointed for the immediately following rounds. If Le Vu Linh, Vo Hoai Thuong and Nguyen Thanh Son disappear from that list, we have indirect evidence that disciplinary measures were carried out, even if nobody announced them. If they appear as normal, the conclusion is just as clear.

The other signal lies in how the remaining referees handle acts of playing the man over the next five rounds. If the card level for this behaviour rises by exactly one step, from yellow to red, that is a sign the meeting between VFF, VPF and the VFF Referees Committee reached the pitch. If nothing changes, we know where we stand.

For Nguyen Dinh Bac, the thing worth watching sits somewhere else entirely: whether he keeps receiving the ball with his back to defenders as confidently as before, or whether he will glance over his shoulder every time. Professional football is decided by things like that, and no VAR room can replay them.