Feb 2 (OPTA) - Results from the WTA Premier, St Petersburg Women's Singles matches on Friday
Quarter-final
8-Daria Kasatkina (RUS) beat 1-Caroline Wozniacki (DEN) 7-6(2) 6-3
4-Kristina Mladenovic beat Katerina Siniakova (CZE) 6-4 6-3
(FRA)
5-Julia Goerges (GER) beat Elena Rybakina (RUS) 6-3 6-3
Petra Kvitova (CZE) beat 2-Jelena Ostapenko (LAT) 6-0 6-2.
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Source: Reuters
