Stuttgart - Carla Suarez-Navarro of Spain beat world No 10 Caroline Wozniacki 7-6 (8/6), 6-1 in the first round on Wednesday as the first seed fell by the wayside at the Porsche Grand Prix.
The seventh-seeded former world No 1 Wozniacki squandered an early 3-0 lead en route to defeat in one hour 47 minutes against the 23rd-ranked Suarez-Navarro.
The winner impressed with her one-handed backhand and raced through the second set after winning the tight first. Suarez-Navarro wrapped up her sixth career win over a top 10 player on her first match point when Wozniacki's baseline shot was ruled out.
"I played well and am very happy. Caroline is a very good player and fights. It was a difficult first set, very close," Suarez-Navarro said.
Suarez-Navarro has reached four finals, including Acapulco 2013, but is yet to lift a trophy.
Set to play later are fifth-seeded former Wimbledon champion Petra Kvitova against Annika Beck, 2011 champion Julia Goerges against Kirsten Flipkens and 2008 champion Jelena Jankovic against the sixth-seeded 2010 runner-up Samantha Stosur.Results from the third day of the $795 000 WTA Stuttgart tournament on Wednesday (x denotes seeding):
Jelena Jankovic (SRB) bt Samantha Stosur (AUS x6) 6-4, 6-4
Bethanie Mattek-Sands (USA) bt Yanina Wickmayer (BEL) 6-2, 6-1
Lucie Safarova (CZE) bt Mona Barthel (GER) 6-4, 6-1
Anastasia Pavlyuchenkova (RUS) bt Ekaterina Makarova (RUS) 6-7 (5/7), 7-5, 6-4
Carla Suarez (ESP) bt Caroline Wozniacki (DEN x7) 7-6 (8/6), 6-1
Yaroslava Shvedova (KAZ) bt Roberta Vinci (ITA) 6-4, 6-2
Petra Kvitova (CZE x5) bt Annika Beck (GER) 7-5, 6-7 (0/7), 6-3
Julia Goerges (GER) bt Kirsten Flipkens (BEL) 6-2, 2-1 retired