In the previous rounds, the 20-year-old Russian won against Argentinian Nadia Podoroska (6-0, 6-1) and Dane Clara Tauson (6-4, 6-4).

Errani, ranked No 96, edged out Spaniard Cristina Bucsa (3-6, 6-0, 6-4) and defeated American Caroline Dolehide (7-5, 7-5) earlier in the tournament.

New York (Grand Slam), other third-round results (USTA Billie Jean King National Tennis Center, hard, USD 75.000.000, most recent results first):

• Beatriz Haddad Maia vs. Anna Kalinskaya
• Iga Swiatek vs. Anastasia Pavlyuchenkova
• Jessika Ponchet vs. Caroline Wozniacki
• Ashlyn Krueger vs. Liudmila Samsonova
• Jessica Pegula beat Jessica Bouzas Maneiro: 6-3, 6-3
• Jasmine Paolini (5) beat Yulia Putintseva (30): 6-3, 6-4
• Karolina Muchova beat Anastasia Potapova: 6-4, 6-2
• Aryna Sabalenka (2) beat Ekaterina Alexandrova (29): 2-6, 6-1, 6-2
• Elise Mertens (33) beat Madison Keys (14): 6-7 (5), 7-5, 6-4
• Donna Vekic (24) beat Peyton Stearns: 7-5, 6-4
• Emma Navarro (13) beat Marta Kostyuk (19): 6-4, 4-6, 6-3
• Yafan Wang beat Victoria Azarenka (20): 6-4, 3-6, 6-1
• Coco Gauff (3) beat Elina Svitolina (27): 3-6, 6-3, 6-3
• Qinwen Zheng (7) beat Jule Niemeier: 6-2, 6-1
• Paula Badosa (26) beat Elena-Gabriela Ruse (Q): 4-6, 6-1, 7-6 (8)