US Open: Zheng makes third round, Niemeier next

Chinese Qinwen Zheng defeated Russian Anastasia Potapova 7-6 (4), 7-6 (3) to advance to the third round of the US Open at the USTA Billie Jean King National Tennis Center in New York City on Thursday evening.

Zheng, ranked No 39, will face German Jule Niemeier next.

The 19-year-old Chinese confirms she’s in a good shape after she edged out Latvian Jelena Ostapenko, the No 16 seed (6-3, 3-6, 6-4).

Potapova, ranked No 52, won against American Claire Liu (6-1, 6-4).

US Open, New York City (Grand Slam), other second-round results

• Petra Martic beat Paula Badosa (4): 6-7 (5), 6-1, 6-2
• Iga Swiatek (1) beat Sloane Stephens: 6-3, 6-2
• Jule Niemeier beat Yulia Putintseva: 6-4, 6-3
• Jessica Pegula (8) beat Aliaksandra Sasnovich: 6-4, 6-4
• Belinda Bencic (13) beat Sorana Cirstea: 3-6, 7-5, 6-2
• Victoria Azarenka (26) beat Marta Kostyuk: 6-2, 6-3
• Lauren Davis beat Ekaterina Alexandrova (28): 0-6, 6-4, 7-6 (5)
• Bianca Andreescu beat Beatriz Haddad Maia (15): 6-2, 6-4
• Liudmila Samsonova beat Leylah Fernandez (14): 6-3, 7-6 (3)
• Aleksandra Krunic beat Barbora Krejcikova (23): 2-6, 6-4, 6-2
• Serena Williams beat Anett Kontaveit (2): 7-6 (4), 2-6, 6-2
• Ajla Tomljanovic beat Evgeniya Rodina: 1-6, 6-2, 7-5
• Caroline Garcia (17) beat Anna Kalinskaya: 6-3, 6-1
• Coco Gauff (12) beat Elena-Gabriela Ruse: 6-2, 7-6 (4)
• Dalma Galfi beat Harriet Dart: 6-4, 6-0
• Veronika Kudermetova (18) beat Maryna Zanevska: 6-2, 6-3
• Rebecca Marino beat Daria Snigur (Q): 6-3, 7-6 (5)
• Madison Keys (20) beat Camila Giorgi: 6-4, 5-7, 7-6 (6)
• Shuai Zhang beat Anna Karolina Schmiedlova: 7-5, 6-1
• Alison Riske-Amritraj (29) beat Camila Osorio: 6-4, 6-7 (5), 7-6 (5)
• Ons Jabeur (5) beat Elizabeth Mandlik (WC): 7-5, 6-2
• Xiyu Wang beat Maria Sakkari (3): 3-6, 7-5, 7-5
• Shelby Rogers (31) beat Viktoria Kuzmova (Q): 7-5, 6-1