Virtual cards make their football debut in Uruguay with an electronic device for referee sanctions

Refereeing has just taken a step toward full digitalization. On Thursday, during Nacional's 3-0 win over Rentistas in the Copa AUF Uruguay round of 16, virtual cards were used for the first time to show disciplinary sanctions. The man in charge of debuting the system was referee Eduardo Varela, who in the 12th minute showed the first yellow card of the match to Juan Pablo Plada using a very different tool: an electronic device with a screen.

• Virtual cards debuted in Nacional's 3-0 victory over Rentistas in the Copa AUF Uruguay round of 16.
• Referee Eduardo Varela showed the first yellow card to Juan Pablo Plada in the 12th minute using an electronic device.
• The device records sanctions and sends them automatically to the COMET information system.
• The AUF is driving the project with a technology company to also digitalize substitutions, penalties and other incidents.

How virtual football cards work

The device looks similar to a mobile phone or a small tablet and allows the referee to show a yellow or red card on a screen. It includes dedicated buttons for each sanction, so the official only has to select the right option for the card to appear clearly. In practice, the routine mirrors the traditional gesture: the referee holds up the device and players, benches and fans see the color of the sanction on the display.

Automatic recording and instant delivery to the COMET system

The value of the new system goes beyond the visual signal. Every time the referee shows a card, the information is recorded automatically and transmitted to the COMET information system. This removes the need to write down the sanction by hand during the match and to digitalize it later, a process that until now depended on manual work by the official or by those responsible for the match report.

The connection with COMET is a meaningful upgrade for match management. The system centralizes official data from each game, and real-time updates reduce the margin for error while speeding up the flow of information to federations, clubs and organizers.

What the AUF Uruguay wants from this technology

The project is the result of a partnership between the Uruguayan Football Association and a technology company. The ambition goes beyond cards: the plan is for other match events, such as substitutions and penalties, to be logged in real time as well. Over time, this information could reach the media directly, making coverage and the distribution of official data much faster.

The device works without a wifi connection, which guarantees it can be used in stadiums with limited network infrastructure or during connectivity outages. That is an important practical detail for a competition played in venues of different sizes and technical capacity.

The debut against Rentistas and the confusion in the stands

The first use came in a Copa AUF Uruguay round-of-16 match, a tournament that brings together clubs from different divisions across the country. Nacional settled the tie with a 3-0 win over Rentistas, but beyond the scoreline, the new disciplinary method grabbed the attention. Eduardo Varela, the referee in charge, became the first to use the device in official competition.

The first experience left one clear area for improvement. From a distance, the color of the card was hard to distinguish, which caused some confusion among fans in the stadium. That kind of rough edge is to be expected at a debut and will likely be corrected in future versions of the device or with adjustments to screen brightness and contrast.

The future of refereeing: virtual cards and full digitalization

The introduction of virtual cards in Uruguay opens a path that other competitions could follow. The combination of a screen, automatic recording and a connection to platforms like COMET points to a more connected style of officiating, with data available almost instantly and a lighter administrative burden for referees.

The immediate challenge is to refine the visual experience so communication with players and fans remains as clear as it is with a traditional card. If the AUF and its technology partner can polish those details, the device could become a regular feature of South American football and, eventually, a reference for other leagues.

Frequently asked questions about virtual cards in football