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Caroline Wozniacki of Denmark poses with winner's throphy during the awards ceremony after her women's singles victory over Vera Zvonareva of Russia in the China Open tennis tournament at the National Tennis Center in Beijing on October 11, 2010. Caroline Wozniacki celebrated her new world number one ranking by capturing the China Open title, her sixth of the year, defeating her Russian rival Vera Zvonareva, 6-3,3-6,6-3. AFP PHOTO/LIU Jin (Photo credit should read LIU JIN/AFP/Getty Images)

Caroline Wozniacki of Denmark poses with winner's throphy during the awards ceremony after her women's singles victory over Vera Zvonareva of Russia in the China Open tennis tournament at the National Tennis Center in Beijing on October 11, 2010. Caroline Wozniacki celebrated her new world number one ranking by capturing the China Open title, her sixth of the year, defeating her Russian rival Vera Zvonareva, 6-3,3-6,6-3. AFP PHOTO/LIU Jin (Photo credit should read LIU JIN/AFP/Getty Images)