There were some surprising results on the second day of the US Open tennis tournament. Naomi Osaka, who took a break from tennis a year ago due to motherhood, entered the second round of women's singles by defeating 10th seed Jelena Ostapenko 6-3, 6-2.
For the first time in four years she has beaten one of the top 10 players. She will next face Karolina Muchova who defeated Katie Volynets 6-3, 7-5. In women's singles, top seed Iga Swiatek defeated Kamila Rakhimova 6-4, 7-6 and advanced to the second round, 11th seed Daniela Collins of the United States lost the first set to another compatriot Caroline Dolehide 6-6, 7-5, 6-4. 2020 Australian Open champion Sofia Kenin defeated 2021 US Open winner Emma Raducanu 6-1, 3-6, 6-4.
Alcaraz in second round of men's singles
In men's singles, four-time Grand Slam champion Carlos Alcaraz of Spain defeated Australian qualifier Li Tu 6-2, 4-6, 6-3, 6-1 after a struggle of about two hours and 45 minutes at Arthur Ashe Stadium. World number 1 Jannik Sinner, who got a clean chit after failing dope tests twice in March, defeated Macky MacDonald 2-6, 6-2, 6-1, 6-2 in a match that lasted two hours and 24 minutes. 14th seed Tommy Pol defeated Lorenzo Sonego 6-4, 6-2, 5-7, 6-2, while fifth seed Daniil Medvedev advanced his campaign with a 6-3, 3-6, 6-3, 6-1 win. Dusan Lajovic was