Linz - Camila Giorgi of Italy has upset last year's finalist Julia Goerges of Germany 6-2, 6-3 in the first round of the Generali Ladies on Tuesday.
The 105th-ranked Giorgi, who won three qualifying matches to reach the main draw, avoided break points and converted the second match point on her serve.
Giorgi next plays fifth-seeded Kirsten Flipkens of Belgium, who rallied to beat 17-year-old Donna Vekic of Croatia 2-6, 6-2, 6-2.
Also, seeded players Carla Suarez Navarro of Spain and Dominika Cibulkova of Slovakia reached the second round.
No. 4 Suarez Navarro defeated Kristyna Pliskova of Czech Republic 6-2, 6-3, and No. 7 Cibulkova came from behind to beat Annika Beck of Germany 3-6, 6-2, 6-1.
Results from the second day of the WTA tournament here on Tuesday (x denotes seeding:
Ana Ivanovic (SRB x3) bt Yanina Wickmayer (BEL) 6-2, 6-4
Katarzyna Piter (POL) bt Irina Begu (ROM) 6-2, 4-6, 6-3
Dominika Cibulkova (SVK x7) bt Annika Beck (GER) 3-6, 6-2, 6-1
Kirsten Flipkens (BEL x5) bt Donna Vekic (CRO) 2-6, 6-2, 6-2
Camila Giorgi (ITA) bt Julia Goerges (GER) 6-2, 6-3
Carla Suarez (ESP x4) bt Kristna Plskova (CZE) 6-2, 6-3