Ana Ivanovic of Serbia returns the ball during the women's singles second round match of China Open Tennis Tournament against Venus Williams of the United States at the National Tennis Center in Beijing, capital of China, Oct. 6, 2015. Ivanovic won 2-0. (Xinhua/Xing Guangli)
Venus Williams of the United States serves during the women's singles second round match of China Open Tennis Tournament against Ana Ivanovic of Serbia at the National Tennis Center in Beijing, capital of China, Oct. 6, 2015. Ivanovic won 2-0. (Xinhua/Xing Guangli)
Ana Ivanovic of Serbia returns the ball during the women's singles second round match of China Open Tennis Tournament against Venus Williams of the United States at the National Tennis Center in Beijing, capital of China, Oct. 6, 2015. Ivanovic won 2-0. (Xinhua/Xing Guangli)
Venus Williams of the United States reacts during the women's singles second round match of China Open Tennis Tournament against Ana Ivanovic of Serbia at the National Tennis Center in Beijing, capital of China, Oct. 6, 2015. Ivanovic won 2-0. (Xinhua/Xing Guangli)
Venus Williams of the United States reacts during the women's singles second round match of China Open Tennis Tournament against Ana Ivanovic of Serbia at the National Tennis Center in Beijing, capital of China, Oct. 6, 2015. Ivanovic won 2-0. (Xinhua/Xing Guangli)
Ana Ivanovic of Serbia celebrates during the women's singles second round match of China Open Tennis Tournament against Venus Williams of the United States at the National Tennis Center in Beijing, capital of China, Oct. 6, 2015. Ivanovic won 2-0. (Xinhua/Xing Guangli)
Ana Ivanovic of Serbia serves during the women's singles second round match of China Open Tennis Tournament against Venus Williams of the United States at the National Tennis Center in Beijing, capital of China, Oct. 6, 2015. Ivanovic won 2-0. (Xinhua/Xing Guangli)
