MELBOURNE, Jan. 24 (Xinhua) -- Following are the results from the Australian Open at Melbourne Park on Wednesday (prefix number denotes seeding):

Men's quarterfinals:

2-Roger Federer, Switzerland, bt Tomas Berdych, Czech Republic, 7-6(1),6-3,6-4

Hyeon Chung, South Korea, bt Tennys Sandgren, United States, 6-4, 7-6(5), 6-3

Women's quarterfinals:

21-Angelique Kerber, Germany, bt Madison Keys, United States, 6-1, 6-2

1-Simona Halep, Romania, bt Karolina Pliskova, Czech Republic, 6-3, 6-2

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