Budapest, Hungary - Anna Tatishvili of Georgia upset third-seeded Tsvetana Pironkova of Bulgaria 1-6, 6-3, 6-1 on Monday in the first round of the Budapest Grand Prix.
Pironkova broke twice to comfortably win the first set before Tatishvili turned the match around. The 81st-ranked Georgian took a 4-1 lead in the second set and then broke three times in the third to clinch the match.
Seventh-seeded Shahar Peer of Israel was also eliminated after losing 6-4, 6-3 to Aleksandra Wozniak of Canada.
Fourth-seeded Klara Zakopalova of the Czech Republic beat Anne Keothavong of Britain 7-6 (7/3), 3-6, 6-2, while No. 5 Marina Erakovic of New Zealand ousted Pauline Parmentier of France 7-6 (7/3), 3-6, 7-6 (7/2).
American Varvara Lepchenko had to retire with a right ankle injury when trailing 5-0 in the first set against Russia's Elena Vesnina.
Results from the first day of the WTA Budapest Grand Prix on Monday (x denotes seeding):
Lesya Tsurenko (UKR) bt Greta Arn (HUN) 3-6, 6-3, 6-1
Marina Erakovic (NZL x5) bt Pauline Parmentier (FRA) 7-6 (7/3), 3-6, 7-6 (7/2)
Aleksandra Wozniak (CAN) bt Shahar Peer (ISR x7) 6-4, 6-3
Klara Zakopalova (CZE x4) bt Anne Keothavong (GBR) 7-6 (7/3), 3-6, 6-2
Petra Martic (CRO x6) bt Csilla Borsanyi (HUN) 6-0, 7-5
Elena Vesnina (RUS) bt Varvara Lepchenko (USA) 5-0, retired
Anna Tatishvili (GEO) bt Tsvetana Pironkova (BUL x3) 1-6, 6-3, 6-1
Vanda Lukacs (HUN) bt Henrietta Habler (HUN) 6-2, 6-1