Berlin Open: Kasatkina beats Kostyuk to reach last 16
Daria Kasatkina defeated Marta Kostyuk 4-6, 7-6 (6), 6-3 on Monday and will play second seed Aryna Sabalenka in the next round

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