Sara Errani of Italy qualified for the Budapest Grand Prix quarterfinals beating Switzerland's Voegele. The 24-year-old WTA No. 35, who is also the No. 2 favorite, beat Switzerland's Stefanie Voegele 6-3, 6-1 Thursday. Errani will take on Spain's Anabel Medina Garrigues, WTA No. 43 in the quarterfinals. Anabel Medina Garrigues of Spain advanced Wednesday beating Lesia Tsurenko of Ukraine 6-2, 7-5. Also Wednesday, third-seeded Klara Zakopalova defeated Aleksandra Krunic of Serbia 7-5, 7-5. The Czech will next play Kateryna Bondarenko of Ukraine, who defeated compatriot Olga Savchuk 6-3, 6-2. Pennetta ousted In Bastad, second-seeded Flavia Pennetta came up a quarterfinal loser Thursday at the $220,000 Swedish Open. Seventh seed Barbora Zahlavova Strycova bounced the Italian Pennetta in 6-4, 5-7, 6-3 fashion on the red clay at Bastad Tennis Stadium. The Czech pulled off the upset in 2 hours, 15 minutes in a match that featured 15 service breaks, including eight by Zahlavova Strycova. Meanwhile, Sweden's own Johanna Larsson upended fourth-seeded Spaniard Lourdes Dominguez Lino 6-4, 3-6, 7-5 and eighth-seeded Slovenian Polona Hercog humbled Russian Vesna Dolonts 6-2, 6-4. Sweden picked up another semifinalist when Sofia Arvidsson outlasted Spanish left-hander Maria Jose Martinez Sanchez 4-6, 7-6 (8-6), 7-6 (7-3). Kamke in semis In Rhode Island, German eighth seed Tobias Kamke advanced to his first ATP semifinal Thursday by rallying to beat France's Edouard Roger-Vasselin 3-6, 6-1, 6-3 at the Hall of Fame Championships. Kamke, who broke the Frenchman in the final game to advance after 98 minutes, reached a Saturday semifinal against the winner of a later match-up between US top seed John Isner and American fifth seed Alex Bogomolov. Monaco lifts Argentina Juan Monaco drew first blood Thursday for Argentina, scoring a straight sets win over Kazakhstan's Andrey Golubev to give the host a 1-0 lead in their Davis Cup quarterfinal. Monaco, ranked 43 in the world, saw off 45th-ranked Golubev 6-3, 6-0, 6-4 in two hours on the clay at the Parque Roca de Buenos Aires to bolster the hopes of the three-time runner-up, shorn of injured stalwart David Nalbandian. In the day's second singles 2009 US Open champion Juan Martin del Potro, returning to the competition after a two-year absence, was taking on Mikhail Kukushkin, who, ranked 67, was not expected to provide a major obstacle.