Martic reaches quarterfinals in second WTA event
PORTOROZ, Slovenia -- Croatian teen Petra Martic upset former champion Klara Zakopalova 6-3, 4-6, 7-6 (3) on Wednesday to reach the Slovenia Open quarterfinals in her second WTA Tour event.
The victory by 17-year-old Martic, ranked 237th, was her first over a top 100 player.
Zakopalova won the inaugural Portoroz title in 2005.
Martic broke into the top 300 only on Monday, a day after winning a satellite event, the Zagreb Open. She then beat Angelique Kerber of Germany ...
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