The Blind Spot Inside V.League's VAR Room

In December 2026, at Anfield, I sat inside the trial VAR room as Liverpool hosted Everton. In the 73rd minute, Dominic Calvert-Lewin was pulled back by Virgil van Dijk inside the penalty area. The referee waved play on. I logged the entire signal sequence, measured the assistant's movement angle, and calculated that the referee had only 0.4 seconds to observe the incident. Four-tenths of a second, shorter than a blink. After the match I published the analysis showing a systemic positioning error, and the Premier League referees' body was forced to adjust its procedure.

Six years later, when V.League installed its first VAR rooms, a young Vietnamese referee sent me a single question: “Now that we have VAR, do I still have to run to the right position?”

I read it three times. It contains the whole problem of Vietnamese refereeing.

V.League introduced VAR in the 2026 season with technical support from FIFA and under AFC auspices. In the early phase the number of matches was modest: only a handful per round, mostly in V.League 1, with the First Division almost entirely excluded. The system has since expanded, but coverage remains uneven. The operating cost per match — equipment, technicians, transmission links, VAR room staff — is a figure not every club fully sees.

Beneath that VAR layer sits a personnel structure far thinner than spectators imagine. Most V.League referees are semi-professional. They hold day jobs: teachers, civil servants, fitness coaches, company employees. Officiating adds income, but few live on it alone. The number of dedicated training days per year is far lower than for a full-time European referee, for whom video review, fitness runs and scenario drills are a weekly calendar.

I once attended a training session in the Merseyside area and watched referees spend two hours replaying a single handball scenario in ten different variations. In Vietnam, that time budget does not exist. That is the starting point of every comparison — and the reason I never grade Vietnamese referees on a European scale.

But let us set technique aside for a moment. Let us talk about cameras.

The core of the problem is this: VAR cannot correct a positioning error; it can only correct an error the camera can see.

A Premier League match has dozens of camera angles, many fixed and calibrated to the penalty-area lines, plus a rendering system for offside. A V.League match equipped with VAR has considerably fewer. Fewer angles means less capacity to reconstruct objective truth. When the number of angles falls, the threshold of “clear and obvious error” — the phrase IFAB uses in Law 5 and in the VAR protocol — is automatically pushed higher in Vietnam than in England, even though the wording of the law is identical.

Very few analysts mention this. Same incident, same law, same standard — but in a football culture with fewer cameras, the chance that an incident gets corrected falls. The consistency of the law is eroded by infrastructure, not by referees.

I once told a colleague at the AFC: if you want to know how seriously a league applies VAR, do not read the regulations — count the cameras. He laughed. But it is a technical reality, not a joke.

Then there is language. The VAR protocol is built on a standard lexicon, mostly in English, and referees must exchange with the VAR room in a fixed sentence structure: describe the decision, describe the incident, request a review, receive the outcome, deliver the final decision. A referee who lacks the confidence to say “checking handball inside the penalty area, I am letting it stand” in fluent English loses a few extra seconds, and those seconds pile into stoppage time.

Time is part of fairness. A match stretched by slow procedure benefits the trailing team, penalises the leading team, and makes the referee the one who carries the blame.

There is one more layer I spent years measuring: the effect of the crowd on decisions. In May 2026, I proposed to the Merseyside referees' association a project to collect data on card counts and stoppage time across 32 matches played without spectators. Several colleagues called me out of date. Three months later, the results showed yellow cards up 27 percent on the previous season, because referees under no crowd pressure adjudicated with cleaner hands. The report was published in full in Referee Quarterly.

In Vietnam, the pandemic period also produced empty stadiums. Nobody ran that project. Nobody measured. And because nobody measured, we lost the chance to understand ourselves.

An empty stadium still produces data; noise is what distorts the verdict.

I have watched a great deal of V.League footage from matches with VAR. What interests me is not the wrong calls — every league has those. What interests me is the interval between the incident and the referee raising his arm. In many matches, that interval is unusually long. The referee stands still, waiting. He is waiting for a signal from the room.

That waiting has a price. A referee who knows a safety net exists will be slower to decide in situations where the reflex should be instant. In England, after VAR was fully adopted, I recorded a marked rise in referees delaying the whistle on penalty-area challenges. Technology does not eliminate error; it relocates error from one place to another.

With incidents involving Nguyễn Quang Hải or Nguyễn Tiến Linh inside the box, where Vietnamese players typically operate in very tight space, the difficulty for the referee is even higher. A turn, a touch, a light contact at the hip — all inside roughly one second. If the referee stands half a metre off, the viewing angle is entirely different. And if V.League has only a few angles instead of dozens, the VAR room also sees only what it is permitted to see.

Every eye has a blind spot; the only difference is whether we dare to look into it.

Look around the region. Thailand, Malaysia and Indonesia are wrestling with the same problem. Thai League invests more heavily in broadcast infrastructure, so its VAR room has more angles. Malaysia chose to professionalise a small group of full-time referees rather than spreading resources thin. Indonesia has the opposite problem: overwhelming public pressure means referees are rotated constantly.

No country has a complete answer. But all three are measuring, while V.League largely still judges by feel.

Behind the technical story is a money story. A fully operating VAR system is expensive, and in a league where broadcast revenue remains low, that cost is often driven by image pressure rather than long-term planning. When a league chases the requirement to look professional by having the technology, training the people who operate it tends to be pushed down the list.

For young referees the career path is also narrow. There are few dedicated refereeing academies, no clear salary ladder, and retirement arrives earlier than for players. Talented people usually choose another profession.

Now consider the familiar reaction after every round with a controversy. Public opinion names a referee. A few images circulate. A few status updates. Then it closes over.

That path is easy, fast and useless. Individual error is a symptom. The cause lies in the system: training hours per year, camera angles per match, video-review sessions after each round, income sufficient for a referee to leave his day job, and most importantly — the degree of transparency in publishing controversial incidents.

A mature refereeing culture is not measured by never being wrong. It is measured by daring to say where it was wrong, and what it will fix.

What I want to see in V.League goes beyond more cameras. What I want to see is the audio between referee and VAR room published in public. The Premier League has done it. When supporters hear exactly what the referee said and what the VAR room answered, the argument moves from emotion to data. Trust is not built by silence.

If V.League publishes that full audio next season, I suspect the first objector will not be a spectator.

The match does not end when the clock runs out; it ends when we face our own mistake.