Seventh-seed Taylor Dent of the United States advanced with a 6-3, 6-4 over Tomas Zib of the Czech Republic in second-round action at the Japan Open tennis tournament in Tokyo. Number-eight Thomas Johansson of Sweden upended American Justin Gimelstob 6-4, 6-4, while ninth-seed Cyril Saulner of France beat countryman Nicolas Thomann 2-6, 6-1, 6-4.

Number-10 Lee Taik-hyung of South Korea defeated Australia's Wayne Arthurs 6-2, 7-6, while 16th seed Gilles Muller of Luxembourg beat American Alex Bogomolov 6-3, 6-1.

Japan's Takao Suzuki upset 15th seed Jan Hernych of the Czech Republic 7-6, 3-6, 7-5.

On the women's side, second-seed Tatiana Golovin of France lost to Nicole Vaidisova of the Czech Republic 6-4, 3-6, 6-4.

Fourth-seed Kristina Brandi of Puerto Rico beat American Mashona Washington 6-2, 6-2, while number-seven Klara Koukalova of the Czech Republic beat Slovakia's Lubomira Kurhajcova 6-2, 6-4.