Australian Open: Kostyuk edges past Mertens to make third round

Ukrainian Marta Kostyuk reached the third round of the Australian Open by edging out Belgian Elise Mertens, the No 25 seed, 5-7, 6-1, 7-6 (6) at Melbourne Park.

Kostyuk, ranked No 37, will face the winner of the match between Greek Maria Sakkari, the No 8 seed, and Russian Elina Avanesyan next.

Ahead of her victory, the 21-year-old Ukrainian won against American Claire Liu (6-3, 4-6, 6-1).

Mertens, ranked No 28, benefited from the abandonment of Egyptian Mayar Sherif (6-2, 2-0) in the previous round.

Melbourne (Grand Slam), other second-round results (Melbourne Park, hard, USD 58.910.000, most recent results first):

• Clara Tauson vs. Victoria Azarenka
• Elena Rybakina vs. Anna Blinkova
• Jelena Ostapenko vs. Ajla Tomljanovic
• Varvara Gracheva vs. Dayana Yastremska
• Katerina Siniakova vs. Viktorija Golubic
• Elina Svitolina vs. Viktoriya Tomova
• Emma Raducanu vs. Yafan Wang
• Emma Navarro vs. Elisabetta Cocciaretto
• Clara Burel vs. Jessica Pegula
• Qinwen Zheng vs. Katie Boulter
• Sloane Stephens vs. Daria Kasatkina
• Tatjana Maria vs. Jasmine Paolini
• Oceane Dodin vs. Martina Trevisan
• Iga Swiatek vs. Danielle Collins
• Arantxa Rus vs. Anna Kalinskaya
• Mccartney Kessler vs. Linda Noskova
• Maria Sakkari vs. Elina Avanesyan: wednesday
• Lesia Tsurenko (28) beat Rebeka Masarova: 6-3, 6-4
• Aryna Sabalenka (2) beat Brenda Fruhvirtova (Q): 6-3, 6-2
• Paula Badosa beat Anastasia Pavlyuchenkova: 6-2, 6-3
• Magdalena Frech beat Caroline Garcia (16): 6-4, 7-6 (2)
• Anastasia Zakharova (Q) beat Kaja Juvan: 6-1, 6-1
• Beatriz Haddad Maia (10) beat Alina Korneeva (Q): 6-1, 6-2
• Amanda Anisimova beat Nadia Podoroska: 6-2, 6-3
• Diane Parry beat Kamilla Rakhimova: 7-5, 6-2
• Coco Gauff (4) beat Caroline Dolehide: 7-6 (2), 6-2
• Barbora Krejcikova (9) beat Tamara Korpatsch: 6-2, 6-2
• Alycia Parks beat Leylah Fernandez (32): 7-5, 6-4
• Storm Hunter (Q) beat Laura Siegemund: 6-4, 3-6, 6-3
• Mirra Andreeva beat Ons Jabeur (6): 6-0, 6-2
• Maria Timofeeva (Q) beat Caroline Wozniacki (WC): 1-6, 6-4, 6-1