LUXEMBOURG (AP) Eighth-seeded Bojana Jovanovski of Serbia advanced to the quarterfinals of the Luxembourg Open by beating Su-Wei Hsieh of Taiwan 6-1, 6-4 Wednesday.
Jovanovski, ranked 38th in the world, has yet to lose a set in the tournament and will next face either top-seeded Caroline Wozniacki of Denmark or Monica Niculescu of Romania.
Also, Andrea Petkovic of Germany came from behind to beat seventh-seeded Eugenie Bouchard of Canada 2-6, 7-5, 6-1 to reach the second round. Tereza Smitkova of the Czech Republic defeated Kristina Mladenovic of France 7-5, 6-1.