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Rafael Nadal celebrates winning his match against Richard Gasquet after three months out with injury. Chris Hyde/Getty Images
China's two-time grand slam winner Li Na, accompanied by husband Jiang Shan, accepts flowers at a ceremony to mark her retirement. Emmanuel Wong/Getty Images
Czech star Petra Kvitova is full of emotion at the ceremony for Li, one of her closest friends on tour. Emmanuel Wong/Getty Images
Novak Djokovic took his record in Beijing to 20-0 as he beat Spain's Guillermo Garcia-Lopez in his first match since his surprise U.S. Open semifinal defeat to Kei Nishikori. Chris Hyde/Getty Images
