For a patent attorney, this is a quietly fascinating tournament. Almost every piece of technology on show represents years of research and a great deal of protected intellectual property. The game on the pitch looks the same as it always has. What surrounds it has changed completely.

A new ball, and what is hidden inside it

The official ball for 2026 is called the Trionda, made by Adidas, which has supplied World Cup balls since 1970. The name means “three waves” in Spanish, a nod to the three host countries. The design follows the same idea: red, green and blue colours for the three nations, a fluid four-panel shape, and small icons hidden in the pattern (a maple leaf for Canada, an eagle for Mexico and a star for the US). It is a handsome ball, but the most important part is the part you cannot see.

Inside the Trionda sits a small motion sensor that records what is happening to the ball five hundred times every second. It tracks when the ball is kicked, how fast it moves, how it spins and in which direction it travels. This information is sent, almost instantly, to the people in charge of officiating the match. In other words, the ball now talks to the referees. It even has to be charged before each game, like a phone. This system, which Adidas calls “connected ball technology,” was developed with a German sports technology company called KINEXON; a good example of how modern sporting equipment is really a collaboration between several specialists, each protecting their own innovation.

It helps to compare the Trionda with the balls that came before it, because the change has been gradual and then sudden. The Brazuca, used in Brazil in 2014, was a purely mechanical ball: clever materials and panel design, but no electronics. The Telstar 18, used in Russia in 2018, was much the same. The real shift came in Qatar in 2022, with the Al Rihla, the first World Cup ball to carry a sensor inside it. But the engineering was different from today: in 2022 the sensor was held in the very centre of the ball, suspended in place. The Trionda takes a different approach. Its sensor now sits inside a special layer beneath one of the outer panels, and to stop the ball from feeling lopsided, small counterweights are placed in the other three panels so it flies evenly. It is a neat solution to a real problem, and exactly the kind of idea that patents are designed to protect.

The new design is not perfect in every way. Researchers who tested the Trionda in a wind tunnel found that, once it is travelling fast, it has slightly more drag than the balls before it, so a long ball hit very hard may lose a little of its range. A useful reminder that every new design involves trade-offs.

How the ball helps the referees

The sensor inside the ball does not work alone. Around each stadium, a network of cameras (as many as thirty of them) track every player and the ball roughly fifty times per second. This technology has been developed over many years by the UK company, Hawk-Eye Innovations. When you combine the ball data with the camera data, the system can build a real-time, three-dimensional picture of the match. This is the heart of what is called semi-automated offside technology. When an attacker receives the ball in a possibly offside position, the system creates an automatic alert and helps the officials judge the exact moment the ball was played. Goal-line technology (also developed by Hawk-Eye Innovations) works in a similar manner, using images to decide whether the whole ball has crossed the line.

It is worth being clear about one important thing that is often misunderstood. The technology does not make the decision: the referees still do. The system gives them faster and more accurate information, but a human makes the final call. For 2026, the powers of the video assistant referee, or VAR, have also been widened a little. For the first time, VAR can step in on incorrectly awarded corner kicks and on second yellow cards that turn out to be wrong. Each of these tools sits on top of a deep stack of patented inventions, from the camera tracking to the way the data is processed.

That stack was tested in court a few years’ ago. A Dutch company, Ballinno, held a European patent for a method of detecting offside by sensing the precise moment the ball is kicked. Shortly before Euro 2024, Ballinno asked the Unified Patent Court (UPC) for an urgent injunction to stop the Union of European Football Associations (UEFA) and ball-sensor maker KINEXON using its connected-ball offside system during the tournament. The Hamburg Local Division refused. It found that Ballinno had not acted quickly enough for the matter to count as urgent, and, on a summary view, was not persuaded the patent was infringed: the patent’s claims required the sensing of actual sound, whereas KINEXON’s sensor measured the ball’s motion. The Paris Central Division of the UPC later revoked the patent for lack of inventive step.

For a tournament built so heavily on patented inventions, that episode was a useful reminder that holding a patent and stopping a global sporting event are two very different things. Timing, evidence and the strength of the patent all matter, and the new UPC is now arguably where these battles over sports technology will be fought.

The genuinely new idea: AI player avatars

If the ball is the headline, the most visible new technology for 2026 is something you will see on your television screen. FIFA has partnered with the technology company Lenovo, and together they are introducing what are called “digital twins” of the players. These are detailed three-dimensional avatars, built using generative artificial intelligence from scans of the real athletes. They are not the generic, faceless figures used in offside replays at previous tournaments. They look like the actual players involved.

The point is to make replays clearer and more convincing for the billions of people watching at home. When a tight offside decision is shown, viewers will see recognisable digital versions of the real players, rather than plain computer mannequins. The avatars build on the same camera tracking that drives the offside system, but turning that data into a lifelike, generative model is a real piece of engineering in its own right, and a good example of how a single stream of match data can be reused to solve several different problems.

Helping the teams: performance analysis for everyone

Not all of the new technology points at the referees. Some of it is aimed squarely at the teams. One of the most interesting example is Football AI Pro, developed by FIFA and Lenovo. It is a generative AI “knowledge assistant” for football: an analyst, coach or player can ask it questions in plain language and receive answers drawn from hundreds of millions of match data points, returned as text, video, charts and three-dimensional visualisations. What makes it striking is who gets to use it. In elite football, the depth of a team’s analysis has usually depended on how much it can spend on data and specialists. Football AI Pro is being given to all 48 teams equally, with the stated aim of levelling the playing field, so that good ideas rather than big budgets decide who makes the best use of the data.

From an intellectual property point of view, this is a particularly interesting model. The valuable asset here is not any single clever gadget. It is the combination of an enormous, carefully gathered set of match data, a language model trained specifically on football, and the software that ties them together. Increasingly, the thing worth protecting is the whole system and the data that feeds it, not simply a mechanical invention. This is a sign of how the centre of gravity in technology, and in the rights that protect it, has shifted from hardware towards data and software.

The same game, quietly rebuilt

What is striking about all of this is how little the game itself has changed. Twenty-two players still chase a ball across the grass, and the drama is the same as it has always been. But the equipment around them has quietly become extraordinary. A ball that reports its own movement five hundred times a second, cameras that rebuild the match in three dimensions, and AI versions of the players themselves would have seemed like science fiction only a few World Cups ago.

The skill on the pitch will always be the reason we watch. But the modern game is now built on engineering and innovation just as much as on talent, and the World Cup, in the summer of 2026, is one of the best places in the world to see that quietly at work.