seeded Nadia Petrova beat Lilia Osterloh of the United States 6-1, 6-2 Tuesday in the first round of the Istanbul Cup. Sorana Cirstea also advanced, beating Masa-Zec Peskiric of Slovenia 6-3, 6-4 to set up a meeting with second-seeded Agnieszka Radwanska in the second round. Tsvetana Pironkova of Bulgaria defeated Polona Hercog of Slovenia 6-4, 7-5 and Liana Ungur of Romania beat Cagla Buyukakcay of Turkey 6-2, 4-6, 7-6 (2). Pironkova will next play Veronika Chvojkova of Czech Republic, who defeated Pemra Ozgen of Turkey 7-5, 6-4, and Ungur will face top-seeded Elena Dementieva of Russia, who had bye in the first round. Ljubicic recovers Croatian third seed Ivan Ljubicic fought off miserable conditions and a terrible start to beat Czech qualifier Jan Hajek 4-6, 6-0, 6-3 in the opening round of the Poertschach International on Tuesday. Only two other matches were completed on Tuesday, both ending in victories for American players. Sam Querrey had been trailing local favorite Oliver Marach 3-6, 5-3 when rain interrupted their opening round match on Monday, but recovered to win 3-6, 6-4, 6-4. Compatriot John Isner overcame Italian qualifier Simone Vagnozzi 6-3, 6-2. Razzano upset Taiwan's Chan Yung-jan lost just one game enroute to upsetting third-seeded Virginie Razzano of France Tuesday and adavncing to the second round of the Internationaux de Strasbourg. Among other seeds, No. 5 Katarina Srebotnik of Slovenia cruised 6-3, 6-1 over Germany's Sabine Lisicki. In other matches, Ukranian Tatiana Perebiynis topped American Ashley Harkleroad 6-2, 6-1. On Monday, Peng Shuai ousted No. 3 seed Ioana Raluca Olaru of Romania 6-2, 7-6 (3). Defending champion Anabel Medina Garrigues of Spain, the No. 6 seed who beat France's Amelie Mauresmo for the title last year, also advanced with a 7-6 (3), 7-5 victory over Klara Zakopalova of the Czech Republic. Flavia Pennetta of Italy defeated France's Nathalie Dechy 4-6, 6-2, 6-3, while Ai Sugiyama of Japan toppled Ukraine's Mariya Koryttseva 7-5, 7-5. Honors even The United split its two singles matches against Argentina on Tuesday at the World Team Cup. James Blake beat Guillermo Canas 7-6 (4), 6-4, but Argentina rebounded with Juan Ignacio Chela defeating Wayne Odesnik 7-5, 6-1 in the Red Group. Also in the Red Group, Sweden took a 2-0 lead over the Czech Republic. In the Blue Group, Germany leads Italy 1-0 and Spain leads Russia 1-0. For Sweden, Robin Soderling beat Tomas Berdych 6-4, 1-6, 6-3 and Thomas Johansson saved a match point at 5-3 in the final set to defeat Michal Tabara 6-2, 4-6, 7-6 (5) and put the Czechs behind. Germany got its point from Philipp Kohlschreiber, who beat Italian player Potito Starace 6-2, 7-6 (5), while David Ferrer beat Mikhail Youzhny 6-3, 6-3 to put Spain ahead of Russia. Calleri prevails Agustin Calleri had 12 aces in a 6-2, 7-5 win Tuesday over Frenchman Olivier Patience to advance to the quarterfinals of the Grand Prix Hassan II tournament. The third-seeded Argentine next will meet Morocco's Younes El Aynaoui, who had 10 aces in his 6-3, 7-5 victory against Slovakia's Dominik Hrabaty. In other matches, Marc Gicquel eliminated Argentina's Guillermo Coria 6-1, 2-6, 7-6 (2), Gilles Simon subdued Serbia's Boris Pashanski 3-6, 6-4, 6-3 and Oscar Hernandez outlasted Canadian Frank Dancevic 6-7 (4), 6-4, 7
