MELBOURNE, Jan. 21 (UPI) -- Kim Clijsters, Amelie Mauresmo and Martina Hingis were third-round winners Saturday at the Australian Open at Melbourne.
Clijsters, the second seed and defending U.S. Open champion, beat Roberta Vinci, 6-1, 6-2. The third-seeded Mauresmo won her match in a walk-over when Michaella Krajicek retired after the first set because of heat stress.
"I felt like I was going to throw up," said Krajicek. "I couldn't even see the ball because my eyes were burning."
Krajicek had to take an ice bath to cool herself off.
Hingis -- a three-time Australian Open champion who is resuming her career following a three-year retirement -- blasted Iveta Benesova, 6-4, 6-1.
Nicole Vaidisova beat Flavia Pennetta, 6-4, 6-2. Francesca Schiavone trounced Maria Sanchez Lorenzo, 6-0, 6-0.
