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Jannik Sinner Caught wearing a prohibited wristband device shortly before the start of the game australian open Fourth round against Luciano Dadri.
The reigning Australian Open champion was ordered to remove what appeared to be a Whoop fitness tracker after being ejected by referee Greg Allensworth.
Sinner wore the technology under his wristband, but Allensworth spotted it during the players’ pregame coin toss and the Italian took it off without complaint.
it is as Carlos Alcaraz Aryna Sabalenka was also ordered to remove a similar device on Sunday, which was also spotted earlier in the match. Alcaraz also tried to hide the device under his wristband.
Sinner, 24, struggles in sweltering heat and admits He was “lucky” to implement the preliminary rules of the competition He battled cramps in his last game against Eliot Spizzirri on Saturday.
Whoop wristbands can measure health and biometric data, including heart rate and body stress, which can also inform recovery, but wearables are not allowed in the Grand Slam.
After Alcaraz was arrested on Sunday, Whoop founder and CEO Will Ahmed posted on
“We wanted to track some specific numbers on the court,” Sinner said after recovering to beat Dudley in straight sets to reach the quarterfinals. “It’s not about living things. It’s more about [what] You can see after the game. That’s the data that we want to use in our practice because you can practice based on heart rate, calories burned, all of that.
“The referee asked me directly if it was a tracker. I said yes. He said take it off. It doesn’t matter. We have other things we can use. The vest. [with tracker inside]. But it’s a little uncomfortable for me. You feel something on your shoulder. A little different. But rules are rules. I see. I won’t use it again. “
Tennis Australia, organizer of the Australian Open, has confirmed that wearable technology will not be allowed at the Grand Slam tournament, but the International Tennis Federation (ITF) has added the Whoop wrist device to its list of approved player analytics technologies. The ATP and WTA tours also allow the use of these devices.
“The Australian Open is engaged in ongoing discussions about how to change this situation,” Tennis Australia said. “Some wearable devices provide athletes with an indication of internal load (measurements such as heart rate), which can give them a 360-degree view of what they are doing and how their body is responding.
“In terms of other data available at AO to athletes and their teams, Bolt 6 allows athletes to monitor key external load measurements such as distance traveled, changes in direction, high acceleration events, and bat speed/spin.”
A Whoop spokesperson said: “Whoop believes athletes have a fundamental right to be informed about their performance and fitness, including during competition at events such as the Australian Open.
“Whoop has been approved by the International Tennis Federation for use in competition and poses no safety, fairness or competitive risks. Blocking access to personal health data does not protect sport. Whoop will continue to stand with athletes and our members to defend their rights to access their data.”