Wednesday

At Melbourne Park

Melbourne, Australia

Purse: $32.9 million (Grand Slam)

Surface: Hard-Outdoor

Singles

Men

Quarterfinals

Stan Wawrinka (4), Switzerland, def. Kei Nishikori (5), Japan, 6-3, 6-4, 7-6 (6).

Women

Quarterfinals

Madison Keys, United States, def. Venus Williams (18), United States, 6-3, 4-6, 6-4.

Serena Williams (1), United States, def. Dominika Cibulkova (11), Slovakia, 6-2, 6-2.