Peng Shuai fails to reach Australian open quarter-finals

Peng Shuai of China serves to Agnieszka Radwanska of Poland during their match at the Australian Open tennis tournament in Melbourne Jan 24, 2011. Peng stopped her strive for the tournament's quarter-finals on Monday by losing 1-2 to Agnieszka Radwanska during the fourth round match of women's singles at the ongoing tournament. [Photo/Xinhua]