Peng Shuai of China hits a return to Agnieszka Radwanska of Poland during the women's singles second round match at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Peng Shuai won 2-0 to enter the next round.(Xinhua/Wang Lei)
Peng Shuai of China hits a return to Agnieszka Radwanska of Poland during the women's singles second round match at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Peng Shuai won 2-0 to enter the next round.(Xinhua/Wang Lei)
Peng Shuai of China hits a return to Agnieszka Radwanska of Poland during the women's singles second round match at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Peng Shuai won 2-0 to enter the next round.(Xinhua/Wang Lei)
Peng Shuai of China hits a return to Agnieszka Radwanska of Poland during the women's singles second round match at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Peng Shuai won 2-0 to enter the next round.(Xinhua/Wang Lei)
The combo photo shows Peng Shuai (L) of China competing with Agnieszka Radwanska of Poland during the women's singles second round match at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Peng Shuai won 2-0 to enter the next round.(Xinhua/Wang Lei)
Agnieszka Radwanska of Poland hits a return to Peng Shuai of China during the women's singles second round match at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Agnieszka Radwanska lost 0-2. (Xinhua/Wang Lei)
Agnieszka Radwanska of Poland reacts during the women's singles second round match against Peng Shuai of China at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Agnieszka Radwanska lost 0-2. (Xinhua/Wang Lei)
Agnieszka Radwanska of Poland hits a return to Peng Shuai of China during the women's singles second round match at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Agnieszka Radwanska lost 0-2. (Xinhua/Wang Lei)
Agnieszka Radwanska of Poland reacts during the women's singles second round match against Peng Shuai of China at the US Open tennis tournament in New York, the United States, on Aug. 27, 2014. Agnieszka Radwanska lost 0-2. (Xinhua/Wang Lei)