Australian Open: Defending champion Nadal knocked out
Defending champion Rafael Nadal was stunned by world No. 65 Mackenzie McDonald in the second round of the ongoing Australian Open. The unseeded American defeated the legendary Spaniard 6-4, 6-4, and 7-5 in the early hours of Wednesday at Melbourne's Rod Laver Arena. Nadal's title defense and quest for his 23rd Grand Slam came to an abrupt end as he struggled throughout with a left hip...