Top-ranked Jannik Sinner withdraws from US Open with right knee injury: 'Sad and disappointed'

Tennis will be without one of its biggest stars at the U.S. Open. World No. 1 Jannik Sinner announced on Friday that he is withdrawing from tennis’ final Grand Slam of the year with a right knee injury. “Even though I have been working hard with my team and my medical staff, we have now […]