Victoria Azarenka of Belarus serves the ball during her first round women's singles match against Monica Niculescu of Romania on the second day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Victoria Azarenka of Belarus serves the ball during her first round women's singles match against Monica Niculescu of Romania on the second day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Victoria Azarenka of Belarus serves the ball during her first round women's singles match against Monica Niculescu of Romania on the second day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Victoria Azarenka of Belarus hits a return during her first round women's singles match against Monica Niculescu of Romania on the second day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Victoria Azarenka of Belarus serves the ball during her first round women's singles match against Monica Niculescu of Romania on the second day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Victoria Azarenka of Belarus serves the ball during her first round women's singles match against Monica Niculescu of Romania on the second day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Victoria Azarenka of Belarus hits a return during her first round women's singles match against Monica Niculescu of Romania on the second day of 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Audience watch the women's singles' 1st round match between Victoria Azarenka of Belarus and Monica Niculescu of Romania on the second day of the 2013 Australian Open tennis tournament in Melbourne, Australia, Jan. 15, 2013. Victoria Azarenka won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)