Wozniacki advances to Istanbul Cup quarterfinals
Kristina Mladenovic of France upset third-seeded Klara Koukalova of the Czech Republic 6-1, 6-3 in the second round, while seventh-seeded Bojana Jovanovski of Serbia was ousted by Italy's Francesca Schiavone 6-1, 6-4 at the Koza World of Sport Complex.
The hardcourt Istanbul Cup has rejoined the WTA calendar after a three-year break during which time the Turkish city hosted the WTA finals.
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