Charleston Open: Collins eases into last 16
Danielle Collins won against Robin Montgomery 6-3, 6-1 on Tuesday and will play the winner of the match between Latvian Jelena Ostapenko, the No 11 seed, and American qualifier Louisa Chirico in the next round

No 7 seed Danielle Collins won against Robin Montgomery 6-3, 6-1 to move into the last 16 of the Charleston Open at the Family Circle Tennis Center on Tuesday.
Collins, ranked No 22, will face the winner of the match between Latvian Jelena Ostapenko, the No 11 seed, and American qualifier Louisa Chirico next.
Montgomery, ranked No 105, defeated Bulgarian Viktoriya Tomova (6-1, 6-3) in the previous round of the Charleston tournament.
Charleston WTA 500, other second-round results (Family Circle Tennis Center, clay, USD 1.064.510, most recent results first):
- Varvara Gracheva vs. Elise Mertens
- Qinwen Zheng vs. Maria Sakkari
- Ashlyn Krueger vs. Katie Volynets
- Ajla Tomljanovic vs. Peyton Stearns
- Sofia Kenin vs. Belinda Bencic
- Shuai Zhang vs. Yulia Putintseva
- Jessica Pegula vs. Iryna Shymanovich
- Hailey Baptiste vs. Emma Navarro
- Ekaterina Alexandrova vs. Ann Li
- Jelena Ostapenko vs. Louisa Chirico
- Anna Kalinskaya vs. Catherine McNally
- Daria Kasatkina vs. Lauren Davis
- Polina Kudermetova vs. Diana Shnaider
- Amanda Anisimova vs. Veronika Kudermetova
- Madison Keys (2) beat Caroline Dolehide: 6-3, 7-6 (4)