Maria Sharapova of Russia reacts after winning her first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Maria Sharapova of Russia reacts during the first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Maria Sharapova of Russia celebrates for victory after the first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Maria Sharapova of Russia reacts during the first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Maria Sharapova of Russia competes during the first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Maria Sharapova of Russia reacts during the first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Maria Sharapova of Russia competes during the first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Maria Sharapova of Russia hits a return during the first round women's singles match against her compatriot Olga Puchkova on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Maria Sharapova won 2-0 to enter the next round. (Xinhua/Chen Xiaowei)
Samantha Stosur of Australia serves the ball during her first round women's singles match against Chang Kai-Chen of Chinese Taipei on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Samantha Stosur won 2-0 to enter the next round. (Xinhua/Bai Xue)
Chang Kai-chen of Chinese Taipei attends her first round women's singles match against Samantha Stosur of Australia on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Chang Kai-chen lost 0-2. (Xinhua/Bai Xue)
Samantha Stosur of Australia hits a return during her first round women's singles match against Chang Kai-Chen of Chinese Taipei on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Samantha Stosur won 2-0 to enter the next round. (Xinhua/Bai Xue)
Samantha Stosur of Australia hits a return during her first round women's singles match against Chang Kai-Chen of Chinese Taipei on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Samantha Stosur won 2-0 to enter the next round. (Xinhua/Bai Xue)
Samantha Stosur of Australia hits a return during her first round women's singles match against Samantha Stosur of Australia on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Chang Kai-chen lost 0-2. (Xinhua/Bai Xue)
Samantha Stosur of Australia celebrates during her first round women's singles match against Chang Kai-Chen of Chinese Taipei on the first day of 2013 Australian Open tennis tournament in Melbourne, Australia, January 14, 2013. Samantha Stosur won 2-0 to enter the next round. (Xinhua/Bai Xue)