Park Record Media Center

A general view of Rod Laver Arena in the final match between Victoria Azarenka of Belarus and Na Li of China during day thirteen of the 2013 Australian Open at Melbourne Park on January 26, 2013 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images)

Belarus's Victoria Azarenka plays a return during her women's singles final against Li Na of China on day thirteen of the Australian Open tennis tournament in Melbourne on January 26, 2013. GREG WOOD/AFP/Getty Images

China's Li Na hits a return against Belarus's Victoria Azarenka during the women's singles final on day 13 of the Australian Open tennis tournament in Melbourne on January 26, 2013. WILLIAM WEST/AFP/Getty Images

Belarus's Victoria Azarenka (L) changes ends during her women's singles final against China's Li Na (R) on day thirteen of the Australian Open tennis tournament in Melbourne on January 26, 2013. PAUL CROCK/AFP/Getty Images

Li Na of China serves to Victoria Azarenka of Belarus during their women's singles final match at the Australian Open tennis tournament in Melbourne January 26, 2013. REUTERS/David Gray

Victoria Azarenka of Belarus hits a return to Li Na of China during their women's singles final match at the Australian Open tennis tournament in Melbourne, January 26, 2013. REUTERS/David Gray

China's Li Na tries to get up after falling during her match against Victoria Azarenka of Belarus in the women's final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 26, 2013. (AP Photo/Ryan Pierse,Pool)

China's Li Na (C) reacts after falling during her women's singles final against Belarus's Victoria Azarenka on day thirteen of the Australian Open tennis tournament in Melbourne on January 26, 2013. GREG WOOD/AFP/Getty Images

Victoria Azarenka of Belarus walks onto court ahead of her women's final match against Na Li of China during day thirteen of the 2013 Australian Open at Melbourne Park on January 26, 2013 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

Na Li of China looks on in her women's final match against Victoria Azarenka of Belarus during day thirteen of the 2013 Australian Open at Melbourne Park on January 26, 2013 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

Victoria Azarenka of Belarus serves to China's Li Na in the women's final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 26, 2013. (AP Photo/Ryan Pierse,Pool)

Victoria Azarenka, right, of Belarus is congratulated by China's Li Na after winning the women's final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 26, 2013. (AP Photo/Greg Baker)

China's Li Na prepares for a return against Belarus's Victoria Azarenka during the women's singles final on day 13 of the Australian Open tennis tournament in Melbourne on January 26, 2013. PETER PARKS/AFP/Getty Images

Victoria Azarenka of Belarus serves to Li Na of China during their women's singles final match at the Australian Open tennis tournament in Melbourne, January 26, 2013. REUTERS/David Gray

Victoria Azarenka of Belarus reacts during her women's singles final match against Li Na of China in their women's singles final match at the Australian Open tennis tournament in Melbourne January 26, 2013. REUTERS/Tim Wimborne

LMFAO musician Redfoo (C), boyfriend of Victoria Azarenka of Belarus, gestures during her women's singles final match against Li Na of China at the Australian Open tennis tournament in Melbourne January 26, 2013. REUTERS/Toby Melville

A chinese man watches a live television broadcast of the Australian Open tennis tournament women's singles final tennis match between China's Li Na and Belarus's Victoria Azarenka, from outside a bar in Beijing on January 26, 2013. Victoria Azarenka won an incident-packed final against an injury-hit Li Na to successfully defend her Australian Open title and retain the world number one ranking. WANG ZHAO/AFP/Getty Images

Victoria Azarenka of Belarus celebrates after defeating China's Li Na in the women's final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 26, 2013. (AP Photo/Rob Griffith)

Victoria Azarenka of Belarus reacts as she celebrates her win over China's Li Na in the women's final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 26, 2013. (AP Photo/Aaron Favila)

Victoria Azarenka of Belarus signs autographs after winning the women's final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 26, 2013. (AP Photo/Andrew Brownbill)

Victoria Azarenka, left, of Belarus poses with China's Li Na, right, and former Australian Open winner Margaret Court after Azarenka won the women's final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 26, 2013. (AP Photo/Andy Wong)

Victoria Azarenka of Belarus poses with The Daphne Akhurst Memorial Cup after defeating Li Na of China in their women's singles final match at the Australian Open tennis tournament in Melbourne, January 26, 2013. REUTERS/Damir Sagolj

Victoria Azarenka of Belarus poses with The Daphne Akhurst Memorial Cup after defeating Li Na of China in their women's singles final match at the Australian Open tennis tournament in Melbourne, January 26, 2013. REUTERS/David Gray