The Manchester derby VAR error was a process failure, not bad luck

Key takeaways

• The BBC reports that the video review which permitted Erling Haaland's winning goal in the Manchester derby remained a subject of argument for several days afterwards, and that the question of what produced the error is still being examined.
• The video assistant referee system in English football is deliberately narrow: it may intervene only on goals, penalty decisions, direct red cards and mistaken identity, and only where it judges the on-field call to be a clear and obvious error.
• A large share of video decisions, including offside and the location of an offence, are treated as factual matters settled inside the review room without the referee ever being sent to the pitchside monitor.
• Retrospective accountability in the Premier League arrives through statements, panel reviews and released audio, none of which can restore a result once the points have been awarded.

The protocol, not the personnel, produces derby-sized mistakes

The instinctive response to a high-profile video review error is to ask who got it wrong. That question is usually answerable and almost always useless. The more productive question is what the system was designed to do in that moment, and whether it was ever likely to do it reliably.

English football's video review protocol is a compromise between two incompatible goals. It was sold as a correction mechanism for obvious mistakes, not a re-refereeing of the match, so it was built with a deliberately high threshold for intervention and a deliberately short list of reviewable incidents. At the same time, it operates in a competition where every goal is scrutinised frame by frame on television within seconds, and where the audience expects the outcome to match what replay appears to show.

Those two things pull in opposite directions. A protocol that intervenes rarely will, by construction, leave standing decisions that look wrong on a screen. A protocol that intervenes often stops being a safety net and becomes the referee. English football has chosen the first, then been surprised each time the predictable consequence arrives.

What led to this specific error is the subject of the BBC's reporting, and beyond what that account sets out, the internal sequence is not something that can be verified here. But the general shape of such failures is well understood, and it is not primarily about individual competence. It is about a decision chain with a narrow remit, a compressed timeframe, ambiguous ownership between the room and the pitch, and no mechanism for correction once the restart has taken place.

The system is permitted to examine only four things

The video assistant referee cannot review whatever looks contentious. Under the laws as written by the International Football Association Board, intervention is confined to four categories: whether a goal should stand, whether a penalty should be awarded, whether a direct red card should be shown, and whether the correct player has been cautioned or sent off. Everything else — a second yellow, a corner, a foul in midfield — is outside the remit, however badly it was called.

Within those categories, a second filter applies. The video official is not asked whether the referee made the best available decision; it is asked whether the referee made a clear and obvious error. That standard is doing enormous work. It converts a question of fact into a question of tolerance, and it means two competent officials can watch identical footage and reach opposite conclusions about whether the bar has been cleared.

A third constraint governs goals specifically. A review of a goal does not examine the whole move; it runs back to the start of the attacking possession phase. That boundary decides which infringements are inside the review and which are simply gone. Where the phase is judged to have begun is itself a judgement call, made under time pressure, and it is rarely explained to anybody outside the room.

Stack those three filters — category, threshold, phase — and a goal can survive a review not because the officials agreed it was correct but because no single filter was cleared decisively enough to overturn it. That is a design outcome, not an accident.

Factual calls are settled in a room the referee never sees

The most consequential structural feature of the protocol is the split between decisions that go to the pitchside monitor and decisions that do not. Subjective matters — a challenge, a handball, the severity of contact — are supposed to be returned to the referee, who views the footage and takes ownership of the outcome in front of the crowd.

Factual matters are handled differently. Offside, whether the ball left the field, and the location of an offence relative to the penalty area are treated as things that can be established rather than weighed. For those, the video official informs the referee of the finding and the referee applies it. There is no on-field review, no walk to the monitor, and no visible moment in which the decision is adopted.

The introduction of semi-automated offside technology has strengthened this category, because it produces an answer quickly and presents it as a measurement. But the technology answers only the question it is given. It does not decide who touched the ball last, when the pass was played, whether a player was interfering with an opponent, or where the attacking phase started. Those inputs remain human, and an error in any of them propagates through an automated output that then looks authoritative on a graphic.

This is where video review is most brittle. A judgement dressed as a fact is very hard to challenge in the moment, because the protocol offers no step at which anybody is required to slow down and say the finding out loud to the stadium.

Accountability arrives long after the points are in the table

English football has responded to video review controversies largely by improving disclosure after the fact. The refereeing body can acknowledge errors publicly, clubs can seek explanations, an independent panel assesses key match incidents retrospectively, and recordings of officials' conversations are released through broadcast programming. The International Football Association Board has also sanctioned trials of in-stadium announcements of review outcomes in some competitions, which would at least explain decisions to the people watching them.

All of that is an improvement on silence. None of it is a remedy. The laws of the game do not permit a result to be altered because a video review was later found to be wrong, and the Premier League has no mechanism for replaying a fixture on those grounds. A mistake acknowledged on a Tuesday leaves Saturday's points exactly where they were.

That matters more in this competition than in most, because league position carries direct financial consequences through prize money, and because the same points decide titles, European qualification and relegation. The structural stake in a derby review is not the argument it generates; it is that the outcome is final in the table while the explanation is provisional for days.

The Premier League's clubs have, when given the chance, voted to keep video review rather than abandon it. That is worth remembering: the system survives because the clubs that complain about it also believe the alternative is worse.

The strongest case against this argument is that the system still catches more than it breaks

The fairest objection is that a process-failure account is unfalsifiable and self-serving. Every error can be described as structural after the event, because every decision passes through a structure. If the same protocol operates for every fixture and produces controversy in only a small fraction of them, the variable being tested is not the protocol.

There is a second, stronger version of it. Video review exists because clear mistakes were being made and left uncorrected, with no mechanism of any kind. Whatever its faults, the system does overturn decisions that were plainly wrong, and it does so in matches that attract far less attention than a Manchester derby. A protocol judged only by its most-scrutinised failures will always look broken, because those are precisely the cases where marginal judgements are examined by millions of people looking for a mistake.

The high threshold for intervention, on this reading, is not a flaw but the point. Lowering it would mean more stoppages, more re-refereeing of ordinary contact, and a different set of complaints about a game rebuilt around review. The narrowness that produced this error is the same narrowness that stops video officials rewriting matches every week. That is a genuine trade-off, and people who defend the current settlement are defending something coherent.

Evidence that would change this conclusion

A process-failure argument should be testable, so it is worth saying what would undermine it.

It would be weakened considerably if the full account of this review showed a straightforward misapplication of a rule that the protocol states unambiguously — a step skipped that the written procedure required, rather than a judgement made within a permitted range. That would point to execution rather than design.

It would also be weakened if errors of this type clustered around particular circumstances that the system already knows how to fix, such as a technical failure in the review equipment or a communication fault, since those have specific remedies and imply nothing about the protocol's logic.

Conversely, the argument would be strengthened if the published record showed officials in the room reaching the correct reading of the incident but concluding that the threshold for intervention had not been met, or disagreeing about where the attacking phase began. That is the signature of a structural problem: people doing their jobs correctly inside rules that do not reliably produce the right answer.

Until the full account is examined against those tests, the honest position is that the specific cause is not established, while the conditions that make such errors likely are.

Sources and further reading

• BBC Sport's report on the disputed video review in the Manchester derby, which sets out the controversy and asks what produced the error.
• The International Football Association Board's laws of the game, which define the video review protocol, its four reviewable categories and the clear and obvious error threshold.
• The Premier League's published competition rules and officiating guidance, for how video review is applied within the English top flight.
• The Professional Game Match Officials body's public material on review procedures, retrospective assessment of key match incidents and the release of officials' audio.