Stuttgart, Germany (SportsNetwork.com) – Wimbledon champion Petra Kvitova
was a stunning second-round loser, while former world No. 1 Caroline Wozniacki
reached the quarterfinals at the Porsche Tennis Grand Prix.
American Madison Brengle doused the third-seeded Czech left-hander Kvitova
6-3, 7-6 (7-2), while the fourth-seeded U.S. Open runner-up Wozniacki got past
Czech Lucie Safarova 7-6 (7-5), 6-1 on the indoor clay at Porsche Arena.
Wozniacki was a Stuttgart finalist in 2011.
Meanwhile, sixth-seeded Russian Ekaterina Makarova eased into the quarters by
leveling Russian lucky-loser Marina Melnikova 6-2, 6-3.
In some other second-round action, former French Open runner-up Sara Errani
handled Kazakhstan’s Zarina Diyas 6-4, 6-1 and rising Frenchwoman Caroline
Garcia grounded German wild card Carina Witthoeft 7-6 (7-4), 6-2.
The 2015 Stuttgart champ will earn $108,000 and a new Porsche 911 Carrera