Spain’s top flight is fitting a radio-frequency sensor into every official match ball this season, built with PUMA and Kinexon, feeding VAR and a new commercial data product called xBALL.
Spain’s top-flight competition is fitting sensors into every official match ball this season, becoming the first national league in the world to deploy the technology across every match. The rollout begins with the opening matchday of 2026-27. The system was built with PUMA and German sensor specialist Kinexon, and it runs alongside Video Assistant Referee (VAR) and semi-automated offside technology, in coordination with Spain’s Technical Committee of Referees (CTA).
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How the sensor works
Kinexon built the radio-frequency chip that sits in the ball. It streams two data points continuously: where the ball is, and precisely when something touches it. Each stadium carries about a dozen antennas that pick up the chip’s signal and pass it into LaLiga’s officiating systems. Players tested the sensor ball against a standard one in blind trials. LaLiga reports they couldn’t tell the two apart on weight, balance, trajectory or feel, and the chip doesn’t change how the ball performs. CTA-led training for referees and VAR officials accompanies the rollout, aimed at standardizing how the data gets used across venues.
Where it changes decisions
The technology targets calls decided by fractions of a second: offside, handball, deflections, corner touches and double-touch incidents. A visual “heartbeat” marks the instant of contact and will show up in broadcast graphics alongside VAR replays, giving viewers a clearer read on contested calls.
Every ball goes through a charge-and-validation check before kickoff, and none of the sensor balls are used in training or warmups, only in competitive fixtures. LaLiga expects to bring the system to LaLiga Hypermotion, the second-tier competition, starting in 2027-28.
How this compares to FIFA’s version
FIFA moved first on ball-sensor technology, embedding a chip in Adidas’ Al Rihla for the 2022 World Cup and building on it with the Trionda ball at the 2026 tournament. The core difference is scale and ownership. LaLiga’s rollout covers a full domestic season, and xBALL sits inside LaLiga’s own commercial operation rather than a one-off tournament build, giving the league a data product it controls across every gameday rather than a single event.
About Kinexon
Kinexon is a Munich-based sports and industrial technology company specializing in real-time tracking sensors and data systems, with existing deployments across professional football, basketball and American football for performance and officiating applications.
