NEW YORK – A roundup of the first day at the US Open held at Flushing Meadows on Sunday:

1618: Emma Raducanu, a former US Open champion, advanced to the second round with a 6-1 6-2 win over Ena Shibahara.
1507: The US Open kicked off under partly cloudy skies in New York, with temperatures around 25°C.
Highlights:
- US Open begins earlier at sun-kissed Flushing Meadows.
- Daily previews feature Medvedev and Sabalenka facing tough challenges in the first round.
- Focus on Sinner and Alcaraz, while Djokovic may surprise.
- Top seed Sinner ready for title defense.
- Sabalenka aims to break her US Open jinx.
- Americans Shelton and Tiafoe are hopeful for breakthroughs.
- Djokovic focuses on Grand Slams despite a slow start.
- Keys enters with optimism after Australian Open triumph.
- Zverev targets US Open success post-Wimbledon reflection.
- Shelton kicks off confidently with American hopes high.
- Pegula embraces unpredictability in her quest for a major.
- US Open 2025 prize money details: How much will the winners take home?
Order of Play for Sunday:
Arthur Ashe Stadium
- 6-Ben Shelton vs Ignacio Buse
- 1-Aryna Sabalenka vs Rebeka Masarova
- 7-Novak Djokovic vs Learner Tien
- 4-Jessica Pegula vs Mayar Sherif
Louis Armstrong Stadium
- Emma Raducanu vs Ena Shibahara
- Emilio Nava vs 4-Taylor Fritz
- Destanee Aiava vs 7-Jasmine Paolini
- 13-Daniil Medvedev vs Benjamin Bonzi
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