Madison Keys of the United States eased past reigning Roland Garros champion Barbora Krejcikova of the Czech Republic 6-3 6-2 to reach her fifth Grand Slam semifinal and second at the Australian Open.
The world No.51 Keys comfortably won the first set on the back of a break she earned in the sixth game that lasted eight and a half minutes, as Krejcikova struggled with the Melbourne heat and received treatment at 5-2 down.
In the second set, Keys quickly went up a double break, 3-0. The world No.