Australia

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Roger Federer of Switzerland makes a backhand return to James Duckworth of Australia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014.(AP Photo/Eugene Hoshiko)

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Bernard Tomic of Australia talks to medical staff during his first round match against Rafael Nadal of Spain at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014.(AP Photo/Rick Rycroft)

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Rafael Nadal of Spain makes a backhand return to Bernard Tomic of Australia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014.(AP Photo/Rick Rycroft)

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Camila Giorgi of Italy cools off with ice pack during a break as she plays Storm Sanders of Australiia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014. (AP Photo/Shuji Kajiyama)

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A spectator cools down in front of a fan spraying cool water while holding the Australian flag during day two at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014. Temperatures hit 40 Celsius (104 Fahrenheit) early afternoon and is expected to rise. (AP Photo/Aijaz Rahi)

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Tennis fans protect themselves from the sun during a first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014.(AP Photo/Aaron Favila)

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Victoria Azarenka of Belarus holds an ice pack to her face during a break in her first round match against Johanna Larsson of Sweden at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014.(AP Photo/Eugene Hoshiko)

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Taiwan's Chan Hao-ching with ice pack on her head, watches the first round match between Christina McHale of the U.S. and Chan Yung-Jan of Taiwan during their first round match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 14, 2014. (AP Photo/Shuji Kajiyama)