ISTANBUL, Turkey, July 28 (UPI) -- No. 6-seeded Andrea Petkovic survived a three-set test Wednesday and advanced to the quarterfinals of the Istanbul Cup tennis tournament in Turkey.
Petkovic, who lost just three games in her first-round match, was on the court nearly 3 hours in a 7-6 (7-5), 5-7, 6-3 victory over Ekaterina Makarova. Petkovic won just three more points -- 119-116 -- overall than Makarova but took two key service breaks in the third set to advance.