Wild scene at the Aussie Open: Jannik Sinner, the defending champ, got caught wearing a Whoop fitness tracker just before his match with Darderi. The umpire spotted it at the coin toss and Sinner took it off without fuss, but it’s got fans buzzing. With Carlitos Alcaraz and Sabalenka also caught, is this a new tech rivalry brewing? Should the Slam rules change or is data-tracking an unfair edge? #Sports #Tennis #Sinner