GUANGZHOU, China — Top-seeded Marion Bartoli of France and sixth-seeded Monica Niculescu of Romania lost in the first round of the Guangzhou Open Tuesday. Taiwanese qualifier Kai-Chen Chang was leading Bartoli 4-3 when the Frenchwoman retired with an injury. Mathilde Johansson of France defeated Niculescu 7-5, 6-2. The 27-year-old Johansson won despite 12 double-faults. Second-seeded Zheng Jie of China, third-seeded Sorana Cirstea of Romania and fourth-seeded Urszula Radwanska of Poland also advanced. Wozniacki in 2nd round Caroline Wozniacki reached the second round of the Korea Open by beating Arantxa Rus of the Netherlands 6-1, 6-2 Tuesday. Jamie Hampton of the United States also advanced, defeating Romina Oprandi of Switzerland 5-7, 6-3, 6-2, while Anabel Medina Garrigues of Spain beat Sesil Karatantcheva of Kazakhstan 6-4, 6-4. Davydenko rallies Eighth-seeded Nikokaly Davydenko of Russia beat Mischa Zverev of Germany 2-6, 6-3, 6-3 Tuesday in the first round of the Moselle Open in Metz. Also, Clement Reix beat Edouard Roger-Vasselin 6-3, 3-6, 7-5 in an all-French match and next meets defending champion and top-seeded Jo-Wilfried Tsonga. In other first-round play, Ivo Karlovic of Croatia won 7-6 (5), 7-6 (3) against qualifier Kenny de Schepper, Vincent Millot of France beat Igor Sijsling 6-4, 6-4, and Frenchman Benoit Paire won 6-1, 6-4 against Xavier Malisse. Top players fall Lukas Lacko of Slovakia and Yen-Hsun Lu of Taiwan both lost in the first round of the St. Petersburg Open on Tuesday. The fifth-seeded Lacko was beaten by Grega Zemlja of Slovenia 6-3, 6-2, while the sixth-seeded Lu lost to Roberto Bautista-Agut of Spain 6-4, 6-2. Zemlja won five consecutive games in the first set and never faced a break in the second. Daniel Gimeno-Traver of Spain advanced to the second round, eliminating Florent Serra of France 7-6 (5), 6-2. Guillermo Garcia-Lopez of Spain rallied to beat Russian wild card Evgeny Donskoy 2-6, 6-4, 6-3 Monday. In other first-round action, Italy's Flavio Cipolla advanced with 7-6 (4), 7-6 (6) win over qualifier Andrei Vasilevski of Belarus and Rajeev Ram of the United States beat Matthias Bachinger of Germany 6-4, 6-4. — Agencies