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Sweden were cruising to a 5-1 win over Tunisia in Monterrey on June 15 when the most interesting moment of the match had nothing to do with the scoreline. It had to do with the ball itself.
When Mattias Svanberg put the ball in the net late in the match, the linesman’s flag went up for offside. Standard stuff. But VAR intervened, and the tool it used to overturn the call wasn’t a camera angle or a frame-by-frame replay. It was data streaming directly from inside the Adidas Trionda match ball, which confirmed that Alexander Isak had made a slight flick that changed everything about the offside calculation.
How a chip inside a football changed the call
The Trionda ball carries a 500 Hz inertial measurement unit sensor chip, developed in collaboration with Kinexon. There’s a tiny sensor inside the ball that takes 500 readings per second, measuring acceleration, rotation, and impact forces in real time. When Isak’s boot grazed the ball with that slight flick, the sensor registered the contact.
That data point moved the timeline of the pass. And when you recalculate the offside line from the moment of Isak’s touch rather than the moment of the original pass, Svanberg was onside. Goal stands.
This marks the first significant deployment of the upgraded ball technology at the 2026 World Cup. FIFA announced earlier in June 2026 that it would be rolling out enhanced semi-automated offside tools for the tournament.
The bigger picture for FIFA’s officiating overhaul
FIFA first implemented connected-ball technology at the 2022 World Cup with the Adidas Al Rihla ball, which featured a built-in sensor supplying VAR with precise ball-positioning and touch data. The upgraded Trionda features relocation of the sensor to a panel layer, enhancing both the balance and performance of the ball while retaining its core IMU technology and advanced AI analytics to assist referees.
The current system includes real-time audio alerts that notify match officials when an offside situation exceeds 10 cm. That threshold is designed to filter out the genuinely marginal calls from the clear-cut ones that don’t need a lengthy review.
The Kinexon partnership is worth paying attention to here. The Munich-based company specializes in real-time sensor technology across multiple sports, and their work with FIFA positions them at the center of what could become a standard framework for officiating across global football competitions.
Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.
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