Sweden 5–1 Tunisia: A Goal Defined by Technology
The scoreboard will remember a 5–1 Sweden win over Tunisia. The fourth goal, though, will be remembered for something far smaller: the faintest brush of a boot on a World Cup ball and a spike on a screen.
On Sunday night, deep into a game already drifting away from Tunisia, Mattias Svanberg stepped off the bench and straight into the storm. Just 18 seconds after coming on in the second half, he swept in a Yasin Ayari free-kick to stretch Sweden’s lead.
Flag up. Offside. Routine.
Or so it seemed.
The assistant’s call ruled that Svanberg had strayed beyond the last defender when Ayari delivered the set piece. Tunisia exhaled. Sweden fumed. Coaches on the touchline and players on the pitch surrounded the referee, insisting something had changed the picture in that split second.
They were right. Or rather, the technology said they were.
A Touch Nobody Saw
The Video Assistant Referee stepped in, but this was no ordinary offside check. Waveform technology, echoing cricket’s famous Snickometer, went to work on the Trionda match ball – Adidas’ microchipped centrepiece of this World Cup.
Replays rolled. Angles changed. Nothing obvious. To the naked eye, the ball seemed to fly straight through from Ayari to Svanberg.
Then came the key shot: a flat-line sensor trace on the VAR screen, suddenly jolting into a spike just as the ball skimmed past Alexander Isak’s outstretched foot.
That tiny spike changed everything.
The data showed that Sweden’s and Liverpool’s centre-forward had brushed the ball, ever so slightly, on its way through. At the moment of Ayari’s delivery, Svanberg had been offside. By the time Isak made contact, Svanberg had drifted back into an onside position. New phase, new picture, new decision.
Goal given.
“It is a good finish by Svanberg, but I can understand why the Tunisian players will be disappointed because when you look at it, it didn’t look like there was a touch,” former Republic of Ireland striker Clinton Morrison said on BBC Radio 5 Live. “It must have been the slightest touch off the outside of his right boot. Credit to VAR, credit to the referee. They got it spot on.”
On the pitch, Sweden celebrated a fourth goal. On the touchline, Tunisia were left staring at a waveform.
The Ball That Knows Everything
This is the new reality at major tournaments. The Trionda ball, built by Adidas for this World Cup, carries a microchip that tracks every contact. It is part of the company’s Connected Ball Technology, a system that fires instant data on every touch of boot or hand straight to the VAR team.
Adidas say the technology “enables faster in-game officiating decisions and more insight into gameplay than ever before.” On nights like this, that promise is tested under the harshest glare.
The process is simple in theory, brutal in impact. As the ball passes a player, the sensor’s flat line remains calm unless contact is made. When Svanberg’s goal went to review, that calm line suddenly leapt as the ball passed Isak. The spike confirmed what nobody on the field could be sure of: there was a touch.
It is not the first time the microchipped ball has decided an argument.
At the 2022 World Cup in Qatar, the same technology settled a debate that dominated Portugal’s 2–0 win over Uruguay. Bruno Fernandes swung in a cross towards Cristiano Ronaldo, who wheeled away claiming the goal, convinced he had flicked the ball past Sergio Rochet. The sensor told a different story. No touch from Ronaldo. Goal to Fernandes.
At Euro 2024, Belgium felt the sting from the other side. Romelu Lukaku thought he had dragged his team level against Slovakia, only for a ‘Snicko’-style review to expose a handball by Lois Openda in the build-up. The waveform didn’t lie. The equaliser vanished.
From the Crease to the Penalty Area
Football’s version of Snickometer borrows its name and concept from cricket, where ‘Snicko’ has long helped umpires decide whether a batter edged the ball.
In cricket, Snickometer breaks down footage frame by frame, pairing it with a waveform that spikes when bat meets ball. English computer scientist Allan Plaskett developed the system in the mid-1990s, and it became a staple of televised coverage and the Decision Review System.
Its role, though, is shrinking. It is no longer used in Tests in England, where more advanced tools such as UltraEdge – operating at higher frame rates than the traditional Snickometer – have taken over. Snicko still survives in Australia and New Zealand, but even there its grip is loosening as newer technology emerges.
It has not been without controversy. During the 2025–26 Ashes series, ‘Snicko’ sat at the heart of a storm when Australian batter Alex Carey was given not out in the third Test due to what was later called “human error” by its operators. Carey, then on 72, went on to make 106 in the first innings in Adelaide. The numbers on the scoreboard stayed; the questions about the process lingered.
That tension now lives in football too. The chip inside the Trionda ball operates at a speed beyond the 340 frames per second of the old cricket system, feeding ultra-precise data into the VAR hub. Yet the final call still lands with human officials, interpreting lines and spikes under immense pressure.
On Sunday night, that spike gave Svanberg a goal and Sweden another flourish in a commanding World Cup win. For Tunisia, it left a familiar, bitter feeling in the modern game.
When the ball itself can testify, how many more matches will be decided by a soundless touch that nobody hears – until a screen says it happened?
