Overview

• Jannik Sinner advanced in straight sets over Luca Nardi and will meet Aleksandar Vukic in the second round.
• Novak Djokovic recovered from a midmatch stomach issue by taking a medical timeout and went on to win his opener.
• Thirteen seeded players, including four ranked in the ATP top 10, were ousted in the first round, creating an unusually open field.
• Alexander Zverev, the No. 3 seed, lost in five sets and disclosed he is grappling with mental-health struggles and may seek therapy.
• British qualifier Oliver Tarvet, a University of San Diego student, won his main-draw debut but is capped at $10,000 in prize money under NCAA rules despite earning nearly £100,000.