Croatia thought they had forced extra time. Josko Gvardiol smashed home a 103rd-minute equalizer against Portugal in the July 2026 World Cup Round of 32, sending fans into an absolute frenzy. But the celebrations died the moment referee Espen Eskas was called to the pitchside monitor. The goal was wiped out. The culprit wasn’t a flag from the linesman, but a tiny microchip suspended inside the match ball. Football fans colloquially call it ‘Snicko’, borrowing the term from cricket. FIFA calls it Connected Ball Technology.
The system detected a microscopic flick-on by Croatian forward Igor Matanovic right before the ball deflected off Portugal’s Renato Veiga. That invisible touch rendered Mario Pasalic offside in the build-up. Let’s break down exactly how this sensor technology operates and why the strict laws of the game forced the referee to disallow the goal.
How World Cup Connected Ball Technology Works
The term “Snicko” actually originates from cricket. In the 1990s, an English inventor developed the Snickometer to detect the faint audio frequency of a cricket ball grazing the edge of a wooden bat. Football fans adopted the nickname because FIFA’s modern system looks almost identical on a television screen.
You won’t see it from the stands, but the 2026 World Cup official match ball—the Adidas Trionda—houses a highly sensitive Inertial Measurement Unit (IMU). This sensor sits perfectly in the center of the ball, held in place by a specialized suspension system. It transmits data at hundreds of frames per second directly to the Video Assistant Referee (VAR) room.
The entire purpose of this hardware is to detect physical contact. When a player strikes, heads, or even lightly grazes the ball, the internal sensors register the impact. The system translates that contact into a waveform graphic. Broadcasters display this to viewers at home as a sort of heartbeat monitor. A flat line means no touch. A sudden spike means someone made contact.
This removes the old problem of visual guesswork. Standard broadcast cameras capture action at roughly 50 to 60 frames per second. If a ball moves quickly, a glancing touch might happen entirely between two frames of video. Video referees used to guess based on blurry pixels or a sudden change in the ball’s spin. The microchip provides mathematical certainty regarding whether contact occurred and at what exact millisecond it happened.
Why Teams Use This / When It Applies
Football referees rely on this system almost exclusively for two specific scenarios: handballs and tight offside calls. The offside law is notoriously tricky when multiple players contest a cross in the air.
According to the rules, a player’s offside position is judged at the exact moment the ball is last played or touched by a teammate. If player A crosses the ball and player B flicks it on, the offside phase resets at player B’s touch. Even if the touch is completely accidental or barely alters the trajectory of the ball, the rules demand the phase be reset.
The distinction between a deliberate play and a deflection is also critical here. If a defender deliberately plays the ball, it resets the offside trap. If the ball merely deflects off a defender without them making a controlled, intentional action, any attacking player who was in an offside position remains penalized. ‘Snicko’ doesn’t judge intent, but it definitively proves who touched the ball last before a scramble happens.
Famous Examples from Major Games
The clash between Croatia and Portugal perfectly illustrates the unforgiving precision of the IMU sensors. When the ball was sent into the Portuguese penalty area, it looked like a standard scramble. Matanovic went up for a header. He missed it to the naked eye. The ball then bounced off Portuguese defender Renato Veiga and landed for Pasalic, who ultimately set up Gvardiol for the finish.
VAR intervened because the offside decision hinged entirely on Matanovic. Did he touch it? The match ball sensor data showed a clear, distinct spike on the broadcast graphic. Matanovic had indeed flicked the ball in mid-air.
Because ‘Snicko’ verified that touch, Pasalic was officially offside when his teammate made contact. The referee determined that Veiga’s subsequent involvement was a deflection, not a deliberate play. That meant the offside phase never reset. Mario Pasalic’s involvement in the play was illegal from the moment Matanovic’s hair grazed the leather.
Former Premier League assistant referee Darren Cann, providing analysis on BBC Sport, stated that the waveform technology entirely verified the flick-on. That left the officials with no choice but to apply the strict letter of the offside law and scrap the goal.
Common Misconceptions
The biggest debate surrounding Connected Ball Technology isn’t about its accuracy. It is about how that accuracy affects the spirit of the sport. Fans and managers frequently argue that applying microscopic, forensic analysis to a free-flowing game ruins the spectator experience.
Croatia manager Zlatko Dalic was fiercely critical after the match in Toronto, arguing that hyper-precise technology “kills emotions” on the field. And he isn’t alone in that sentiment. When goals are disallowed for touches that no human being could ever see in real time, stadium crowds feel cheated out of their celebrations.
The frustration often boils over into the stands. Following the disallowed equalizer, irate fans hurled objects onto the pitch. Soft drink cans and water bottles rained down from the Croatian supporters’ section, forcing a lengthy delay before the officials could restart the game.
But the core misconception is that VAR officials are hunting for reasons to disallow goals. The technology operates objectively. It simply feeds raw data to the referee. The human officials still have to interpret the laws of the game, like deciding what constitutes a deflection versus a deliberate pass, but the microchip removes any debate over whether physical contact actually happened.