Swiss Olympic champion Belinda Bencic reached the last eight of the WTA grass-court tournament in Berlin on Thursday with a 6-4, 1-6, 6-1 win over Russia’s Anna Kalinskaya.

The 25-year-old Bencic will meet another Russian in the quarter-finals as she awaits the later winner of Ludmilla Samsonova v Weronika Kudermetova.

Top seed Ons Jabeur of Tunisia also reached the last eight on Friday with a 6-2, 7-6 (10-8) win over American Alycia Parks to set up a clash with Aliaksandra Sasnovich.

And American teenager Coco Gauff cruised past China’s Wang Xinyu 6-0, 6-4 to reach her first quarter-final on grass where she’ll meet Karolina Pliskova.