Ukrainian Elina Svitolina, the No 16 seed, advanced to the last 16 of the Italian Open by winning against Russian Anna Kalinskaya, the No 23 seed, 6-3, 6-3 at the Foro Italico in Roma on Sunday evening.
Svitolina, ranked No 19, will play Belarusian Aryna Sabalenka, the second seed, next.
In the previous round of the Rome tournament, the Ukrainian beat Italian wildcard Sara Errani (6-0, 6-2).
Kalinskaya, ranked No 26, defeated Dane qualifier Clara Tauson (6-1, 6-2) in the 64 of the Rome tournament.
Roma WTA 1000, other round of 32 results (Foro Italico, clay, USD 5.509.771, most recent results first):
- Danielle Collins vs. Caroline Garcia: sunday
- Victoria Azarenka vs. Mayar Sherif: sunday
- Jelena Ostapenko (9) beat Sara Sorribes Tormo: 6-4, 5-7, 6-1
- Aryna Sabalenka beat Dayana Yastremska (32): 6-4, 6-2
- Rebecca Sramkova (Q) beat Sofia Kenin: 6-4, 4-6, 6-4
- Irina-Camelia Begu beat Elise Mertens (27): 6-2, 6-0
- Maria Sakkari (5) beat Anhelina Kalinina (30): 7-6 (4), 6-0
- Coco Gauff (3) beat Jaqueline Cristian (LL): 6-1, 0-6, 6-3
- Sorana Cirstea (28) beat Marketa Vondrousova (6): 7-6 (1), 6-3
- Madison Keys (18) beat Beatriz Haddad Maia (12): 6-4, 4-6, 6-3
- Qinwen Zheng (7) beat Linda Noskova (29): 3-6, 6-1, 6-2
- Naomi Osaka beat Daria Kasatkina (10): 6-3, 6-3
- Angelique Kerber beat Aliaksandra Sasnovich (Q): 6-3, 7-6 (4)
- Paula Badosa beat Diana Shnaider: 5-7, 6-4, 6-4
- Iga Swiatek (1) beat Yulia Putintseva: 6-3, 6-4
