Overview
- Carlos Alcaraz was told by chair umpire Marija Cicak during warm-up to take off a Whoop tracker hidden under his wrist sweatband and he complied.
- Alcaraz then beat Tommy Paul in straight sets to reach the quarterfinals, having reportedly worn the device in earlier rounds without issue.
- Whoop founder Will Ahmed asserted on X that the band is approved for in‑match use under ITF oversight and argued athletes should access their health data.
- Grand Slam events follow ITF regulations that restrict devices capable of transmitting performance data during matches unless specific permission is granted.
- Australian media reported Aryna Sabalenka was also asked to remove a Whoop, and organizers have not provided a public explanation for the enforcement.