Aryna Sabalenka frustrated by Australian Open’s ban on wearable fitness trackers - Sabalenka, who is a Whoop ambassador, is not allowed to wear the devices on court during the Australian Open

Approved on tour but barred at Slams, the health tracker controversy exposes the sport’s complicated rulebook.

Australian Open officials have made headlines for asking Aryna Sabalenka, Carlos Alcaraz and Jannik Sinner to remove Whoop devices from their wrists during match play, though the exact reason remains unclear.

After a fortnight that began with 128 players and a wide-open draw, the Australian Open arrives at its quarterfinals with a familiar favorite, a first-time teenager and little margin left for error.

‘Data is not steroids’: Why were Jannik Sinner and Carlos Alcaraz banned from wearing fitness trackers at Australian Open? - Sinner, Alcaraz and Aryna Sabalenka have been caught wearing fitness tracke

The world number 12, Elina Svitolina, ousted the world number three and two-time Grand Slam winner Coco Gauff to advance to her maiden Australian Open semifinal on Tuesday. The 19-time WTA tour-level titlist,

Elina Svitolina dropped just three games against Coco Gauff in a 59-minute blitz to reach her fourth career Grand Slam semifinal, and first at the Australian Open. She will return to the Top 10 in the PIF WTA Rankings for the first time since October 2021 as a result.

Naomi was expected to play in the next round against Iga Swiatek, a Polish tennis player who won in the third round against Anna Kalinskaya.

Sabalenka Crushes Jovic in Straight Sets, Slams Grand Slam WHOOP Ban at Presser Match after match, Aryna Sabalenka is imposing her dominance at the 2026 Australian Open. Just two matches from a third title in Melbourne,