Jannik Sinner's US Open chances take worrying turn as Italian prepares to undergo medical check-up: Reports – Sportskeeda Aug 5, 2026 @ 8:29amTennisSportskeedaJannik Sinner's US Open chances take worrying turn as Italian prepares to undergo medical check-up: Reports Sportskeeda Read moreJannik Sinner's US Open chances take worrying turn as Italian prepares to undergo medical check-up: Reports – Sportskeeda