Ailing Nadal crashes out of Australian Open, Swiatek eases through

MELBOURNE, Jan. 18 (Xinhua) -- Top seed Rafael Nadal's title defense came to an end after a second round defeat to Mackenzie McDonald, while women's favorite Iga Swiatek cruised through as volatile weather on Wednesday once again marred the Australian Open.

In what was a major upset on day three, Nadal was clearly hampered by a hip injury in his 6-4, 6-4, 7-5 loss at Rod Laver Arena.

It is the 36-year-old