MELBOURNE, Australia — Results today from the $15.44 million Australian Open at Melbourne Park (seedings in parentheses)

Singles

Men

Quarterfinals

Fernando Verdasco (14), Spain, def. Jo-Wilfried Tsonga (5), France, 7-6 (2), 3-6, 6-3, 6-2.

Rafael Nadal (1), Spain, def. Gilles Simon (6), France, 6-2, 7-5, 7-5.

Women

Quarterfinals

Elena Dementieva (4), Russia, def. Carla Suarez Navarro, Spain, 6-2, 6-2.

Serena Williams (2), United States, def. Svetlana Kuznetsova (8), Russia, 5-7, 7-5, 6-1.