Victoria Azarenka of Belarus drops her racket during women's singles fourth round against Ana Ivanovic of Serbia at the 2013 US Open tennis championships in New York, the United States, on Sept. 3, 2013. Victoria Azarenka won the match 2-1. (Xinhua/Wang Lei)
Victoria Azarenka of Belarus returns a shot during women's singles fourth round against Ana Ivanovic of Serbia at the 2013 US Open tennis championships in New York, the United States, on Sept. 3, 2013. Victoria Azarenka won the match 2-1. (Xinhua/Wang Lei)
Ana Ivanovic of Serbia returns a shot during women's singles fourth round against Victoria Azarenka of Belarus at the 2013 US Open tennis championships in New York, the United States, on Sept. 3, 2013. Victoria Azarenka won the match 2-1. (Xinhua/Wang Lei)
Ana Ivanovic of Serbia returns a shot during women's singles fourth round against Victoria Azarenka of Belarus at the 2013 US Open tennis championships in New York, the United States, on Sept. 3, 2013. Victoria Azarenka won the match 2-1. (Xinhua/Wang Lei)
Ana Ivanovic of Serbia returns a shot during women's singles fourth round against Victoria Azarenka of Belarus at the 2013 US Open tennis championships in New York, the United States, on Sept. 3, 2013. Victoria Azarenka won the match 2-1. (Xinhua/Wang Lei)
Victoria Azarenka of Belarus returns a shot during women's singles fourth round against Ana Ivanovic of Serbia at the 2013 US Open tennis championships in New York, the United States, on Sept. 3, 2013. Victoria Azarenka won the match 2-1. (Xinhua/Wang Lei)
Victoria Azarenka of Belarus drops her racket during women's singles fourth round against Ana Ivanovic of Serbia at the 2013 US Open tennis championships in New York, the United States, on Sept. 3, 2013. Victoria Azarenka won the match 2-1. (Xinhua/Wang Lei)
