Uruguay's Referee Replaced His Cards With a Phone-Sized Screen

The most recognisable gesture in football changed shape on Thursday night in Montevideo. Referee Eduardo Varela reached for a booking and raised a glowing screen instead of a card, during Nacional’s 3-0 Copa Uruguay win over Rentistas. The yellow card has been part of the game since 1970 and has survived every technology wave football has thrown at it, from VAR and its review screens to semi-automated offsides. This trial is aimed at the one part of refereeing that never modernised: the notebook.

What actually happened at the Gran Parque Central?

A full official match refereed without a single physical card. Varela used the phone-sized device for disciplinary decisions in the round of 16 tie at Nacional’s Gran Parque Central stadium, Reuters reports. The first electronic caution came in the 12th minute, when Rentistas midfielder Juan Pablo Plada fouled Maxi Silvera and saw a screen light up yellow rather than a card pulled from a pocket, DailySports reports. Nacional went on to win 3-0. The device has two buttons that display yellow or red, and it records far more than discipline: substitutions, penalties and goals can all be logged on the same unit, which syncs with the Uruguayan Football Association’s COMET competition platform.

Why replace a card that works?

Because the card was never the point. The point, for REFe directors Mauro Sacco and Diego de la Pena, is the paperwork behind it. Sacco told Uruguayan radio the project began more than three years ago at a rain-soaked match, watching a referee write cautions down by hand before someone later typed them into a digital system. The device logs each incident with a timestamp and sends the record straight into COMET, which removes the handwritten stage entirely. AUF refereeing director Marcelo De Leon has described the longer ambition as making match information available almost instantly to the association and eventually to media, DailySports reports. It is the same logic that put a referee’s dropped red card in a player’s hands in Split last week on screens everywhere: the card is a symbol, but the record it creates is what leagues actually run on.

What does the referee lose when the card becomes a screen?

The theatre, and he knows it. Varela said the device was comfortable to use and its software responded quickly, but he acknowledged that it lacked the drama of the traditional gesture, Reuters reports. A card brandished at speed is a full stop in a match’s argument, visible to a striker 60 yards away and to the back row of the stand. Recent weeks have shown how much of refereeing is that communication: Gravenberch’s two yellows against Manchester City split opinion precisely because each flash of the card told a different story, and Vinicius’s red for a hair pull was argued over for days partly through the images of the review. A screen has to work harder to send the same message, and on Thursday it did not always manage it.

What is the trial’s biggest problem?

Visibility, the one quality a card cannot fail at. An earlier trial of the device was abandoned because sunlight made the screen hard to read, Reuters reports, and a separate earlier test involving Defensor Sporting ran into the same issue, DailySports reports. Thursday’s match was played at night and the colours were still not entirely clear from some seats in the stands or on television. De la Pena conceded the project has room to improve and that it looked better live than on TV, and the developers are exploring fixes such as LED lighting around the unit so the colour reads at distance. Until that is solved, the device improves the record while weakening the signal, which is the wrong trade for a tool whose first job is to be seen.

Where does the experiment go next?

Wherever the AUF sends it, and then, the developers hope, further. REFe has registered the brand and patented the hardware and software, and Sacco says the ambition is adoption by CONMEBOL and eventually FIFA, Reuters reports. Nothing outside Uruguay is committed, and the association itself is treating this as a phased evaluation rather than a rollout. The honest reading of the trial is narrow: the administrative idea worked in a real cup match, the display did not yet. Football has absorbed goal-line technology and video reviews by proving each one in exactly this kind of low-stakes tie first. The card has been analogue for 56 years. On Thursday, in one stadium in Montevideo, it went digital and a midfielder from Rentistas became the first player booked by a screen, whether the back row could see it or not.