US Open: Keys ends 18-year-old qualifier Joint’s run

American Madison Keys, the No 14 seed, reached the third round of the US Open by defeating Australian qualifier Maya Joint 6-4, 6-0 on Wednesday.

Keys, ranked No 14, will play Belgian Elise Mertens, the No 33 seed, next.

In the previous round, the American won against Katerina Siniakova (6-4, 6-1).

Joint, ranked No 135, beat German Laura Siegemund (6-4, 7-5) in the first round.

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

• Karolina Pliskova vs. Jasmine Paolini
• Yulia Putintseva vs. Xinyu Wang
• Varvara Lepchenko vs. Anastasia Potapova
• Naomi Osaka vs. Karolina Muchova
• Anna Bondar vs. Anna Kalinskaya
• Beatriz Haddad Maia vs. Sara Sorribes Tormo
• Caroline Wozniacki vs. Renata Zarazua
• Elena Rybakina vs. Jessika Ponchet
• Sofia Kenin vs. Jessica Pegula
• Katie Boulter vs. Jessica Bouzas Maneiro
• Clara Tauson vs. Diana Shnaider
• Caroline Dolehide vs. Sara Errani
• Marie Bouzkova vs. Liudmila Samsonova
• Mirra Andreeva vs. Ashlyn Krueger
• Elisabetta Cocciaretto vs. Anastasia Pavlyuchenkova
• Iga Swiatek vs. Ena Shibahara
• Tatjana Maria vs. Coco Gauff
• Victoria Azarenka vs. Clara Burel
• Peyton Stearns vs. Daria Kasatkina
• Elina Svitolina vs. Anhelina Kalinina
• Emma Navarro vs. Arantxa Rus
• Lucia Bronzetti vs. Aryna Sabalenka
• Donna Vekic vs. Greet Minnen
• Diane Parry vs. Yafan Wang
• Ekaterina Alexandrova vs. Iva Jovic
• Harriet Dart vs. Marta Kostyuk
• Qinwen Zheng vs. Erika Andreeva
• Elise Mertens beat Ajla Tomljanovic: 6-3, 6-2
• Jule Niemeier beat Moyuka Uchijima: 6-4, 6-0
• Paula Badosa (26) beat Taylor Townsend: 6-3, 7-5
• Elena-Gabriela Ruse (Q) beat Barbora Krejcikova (8): 6-4, 7-5