Berlin Open: Kasatkina beats Kostyuk to reach last 16

Russian Daria Kasatkina advanced to the last 16 of the Berlin Open by beating Ukrainian Marta Kostyuk 4-6, 7-6 (6), 6-3 at Rot-Weiss Tennis Club.

Kasatkina, ranked No 14, will face second seed Aryna Sabalenka next.

Berlin WTA 500, other last-32 results (Rot-Weiss Tennis Club, grass, USD 922.573, most recent results first):

• Veronika Kudermetova vs. Liudmila Samsonova
• Maria Sakkari vs. Victoria Azarenka
• Naomi Osaka vs. Qinwen Zheng
• Donna Vekic vs. Jule Niemeier
• Xinyu Wang vs. Ons Jabeur
• Linda Noskova vs. Angelique Kerber
• Beatriz Haddad Maia vs. Ekaterina Alexandrova
• Katerina Siniakova vs. Emma Navarro
• Marketa Vondrousova vs. Rebeka Masarova
• Nao Hibino vs. Anna Kalinskaya
• Zeynep Sonmez (Q) beat Arantxa Rus (LL): 3-6, 6-2, 6-1