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Li Na of China holds the championship trophy after defeating Dominika Cibulkova of Slovakia in their women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 25, 2014.(AP Photo/Eugene Hoshiko) ( Australian Open Tennis )

Dominika Cibulkova of Slovakia hits a return to Li Na of China during their women's singles final on day 13 of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. (WILLIAM WEST/AFP/Getty Images) ( 526376637 )

In this photograph taken with a Tilt and Shift lens, China's Li Na (R) plays a shot during her women's singles final match against Slovakia's Dominika Cibulkova (L) on day thirteen of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. (MAL FAIRCLOUGH/AFP/Getty Images) ( 526381505 )

Na Li (L) of China and Dominika Cibulkova of Slovakia watch the presentation after their women's final match during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images) ( 464959181 )

Li Na of China celebrates with her husband Jiang Shan, center top, and support team members after defeating Dominika Cibulkova of Slovakia during their women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 25, 2014.(AP Photo/Eugene Hoshiko) ( Australian Open Tennis )

Fans of Na Li of China watch her in her women's final match against Dominika Cibulkova of Slovakia during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Matt King/Getty Images) ( 464944293 )

Australia's Mark Webber attends the women's singles final between Slovakia's Dominika Cibulkova and China's Li Na on day 13 of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. AFP PHOTO / SAEED KHAN -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USESAEED KHAN/AFP/Getty Images ( 526377861 )

Dominika Cibulkova of Slovakia plays a forehand in her women's final match against Na Li of China during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images) ( 464938441 )

Na Li of China plays a forehand in her women's final match against Dominika Cibulkova of Slovakia during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images) ( 464938393 )

Slovakia's Dominika Cibulkova serves against China's Li Na during the women's singles final on day 13 of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. (SAEED KHAN/AFP/Getty Images) ( 526377173 )

Dominika Cibulkova of Slovakia celebrates a point in her women's final match against Na Li of China during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images) ( 464938671 )

Li Na of China serves against Dominika Cibulkova of Slovakia during the women's singles final on day 13 of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. (PAUL CROCK/AFP/Getty Images) ( 526378168 )

Dominika Cibulkova of Slovakia serves in her women's final match against Na Li of China during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images) ( 464958551 )

China's Li Na (C) poses with ballboys as she celebrates after victory in her women's singles final match against Slovakia's Dominika Cibulkova on day thirteen of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. (GREG WOOD/AFP/Getty Images) ( 526380891 )

Na Li of China holds the Daphne Akhurst Memorial Cup after winning the women's final match against Dominika Cibulkova of Slovakia during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Graham Denholm/Getty Images) ( 464952401 )

Jiang Shan (R) the husband of China's Li Na celebrates with Na's coach Carlos Rodriguez (L) after her victory in the women's singles final match against Slovakia's Dominika Cibulkova on day thirteen of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. (GREG WOOD/AFP/Getty Images) ( 526380194 )

Li Na of China, right, holds the championship trophy with second placed Dominika Cibulkova of Slovakia in their women's singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 25, 2014.(AP Photo/Aaron Favila) ( Australian Open Tennis )

Lukasz Kubot of Poland and Robert Lindstedt of Sweden celebrates a point in their Men's Doubles Final against Eric Butorac of the United States and Raven Klaasen of South Africa during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images) ( 464966791 )

Eric Butorac of the United States plays a backhand in his Men's Doubles Final with Raven Klaasen of South Africa against Lukasz Kubot of Poland and Robert Lindstedt of Sweden during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images) ( 464967639 )

Lukasz Kubot of Poland, left, and Robert Lindstedt of Sweden celebrate after defeating Eric Butorac of the U.S. and Raven Klaasen of South Africa in their men's doubles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 25, 2014.(AP Photo/Eugene Hoshiko) ( Australian Open Tennis )

Lukasz Kubot of Poland, center, celebrates with support team members after he and Robert Lindstedt of Sweden defeated Eric Butorac of the U.S. and Raven Klaasen of South Africa in their men's doubles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 25, 2014.(AP Photo/Aaron Favila) ( Australian Open Tennis )

Lukasz Kubot of Poland and Robert Lindstedt of Sweden celebrate winning their Men's Doubles Final against Eric Butorac of the United States and Raven Klaasen of South Africa during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images) ( 464968009 )

Eric Butorac (L) of the United States and Raven Klaasen of South Africa talk tactics in their Men's Doubles Final against Lukasz Kubot of Poland and Robert Lindstedt of Sweden during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images) ( 464959423 )

Poland's Lukasz Kubot (R) and Sweden's Robert Lindstedt celebrate victory against Eric Butorac of the US and South Africa's Raven Klaasen during the men's doubles final on day 13 of the 2014 Australian Open tennis tournament in Melbourne on January 25, 2014. (SAEED KHAN/AFP/Getty Images) ( 526382164 )

Lukasz Kubot of Poland and Robert Lindstedt of Sweden pose with the winners trophy, and Eric Butorac of the United States and Raven Klaasen of South Africa pose with the runner up trophy after their Men's Doubles Final during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images) ( 464968359 )

Alexander Zverev of Germany poses with the winners trophy and Stefan Kozlov of the United States poses with the runner up plate after their Junior Boys' Singles Final during the 2014 Australian Open Junior Championships at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Matt King/Getty Images) ( 464897037 )

Elizaveta Kulichkova (R) of Russia poses with the winners trophy and Jana Fett of Croatia poses with the runner up trophy after their Junior Girls' Singles Final during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Matt King/Getty Images) ( 464909271 )

David Wagner of the United States holds the winners trophy after winning the Quad Wheelchair Singles Final against Lucas Sitole of the United States during the 2014 Australian Open Wheelchair Championships at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Robert Prezioso/Getty Images) ( 464937867 )

Shingo Kunieda of Japan holds the championship trophy after defeating Gustavo Fernandez of Argentina during their men's wheelchair singles final at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 25, 2014. (AP Photo/Shuji Kajiyama) ( Australian Open Tennis )

David Wagner of the United States plays a backhand in the Quad Wheelchair Singles Final against Lucas Sitole of the United States during the 2014 Australian Open Wheelchair Championships at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Robert Prezioso/Getty Images) ( 464937879 )

David Wagner of the United States shakes hands with Lucas Sitole of South Africa after Wagner won their Quad Wheelchair Singles Final during the 2014 Australian Open Wheelchair Championships at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Robert Prezioso/Getty Images) ( 464937977 )

Stanislas Wawrinka of Switzerland talks at a press conference ahead of his men's final match tomorrow against Rafael Nadal of Spain during day 13 of the 2014 Australian Open at Melbourne Park on January 25, 2014 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images) ( 464897155 )

Rafael Nadal of Spain practices during a training session, one day before his men's singles final against Stanislas Wawrinka of Switzerland at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 25, 2014. (AP Photo/Shuji Kajiyama) ( Australian Open Tennis )