Fifth seed Jelena Ostapenko has crashed out of the Birmingham Traditional following a surprise last-16 defeat to world No.90 Tereza Martincova.
The 2017 French Inaugurate champion suffered a 7-6 (7-4) 4-6 6-2 loss in her first profession meeting with the match qualifier in the grass-court tournament in Edgbaston on Thursday.
Czech player Martincova, who furthermore reached the quarter-finals in Nottingham last week, has been rewarded with a last-eight conflict against fourth seed Daria Kasatkina, who defeated Ukrainian Marta Kostyuk 6-2 7-5.
2nd seed Ons Jabeur survived a terror to hassle through with victory over Canadian teen Leylah Fernandez.
The Tunisian used to be reliant on a deciding-position tiebreak to beat her 18-three hundred and sixty five days-outdated opponent, winning 6-4 3-6 7-6 (7-3) against the area No.66.
Russian Anastasia Potapova awaits Jabeur after she eased past France’s Kristina Mladenovic 6-3 6-3.
