Berlin Open: Pegula moves into last eight

American Jessica Pegula, the No 4 seed, moved into the quarter-finals of the Berlin Open by winning against Croat wildcard Donna Vekic 6-4, 7-5 at Rot-Weiss Tennis Club on Thursday.

Pegula, ranked No 5, will face qualifier Katerina Siniakova next.

In the previous round of the Berlin tournament, Vekic, ranked No 39, beat German wildcard Jule Niemeier (1-6, 6-1, 6-3).

Berlin WTA 500, other last 16 results (Rot-Weiss Tennis Club, grass, USD 922.573, most recent results first):

• Daria Kasatkina vs. Aryna Sabalenka
• Linda Noskova vs. Ons Jabeur: thursday
• Coco Gauff (1) beat Ekaterina Alexandrova: 7-6 (6), 6-2
• Katerina Siniakova beat Qinwen Zheng (6): 6-4, 6-4
• Anna Kalinskaya beat Marketa Vondrousova (5): 5-5 ret.
• Elena Rybakina (3) beat Veronika Kudermetova (Q): 6-4, 7-5
• Victoria Azarenka beat Zeynep Sonmez (Q): 6-3, 6-3