Hope Nan Nan's injury at Beijing 50k 1 isn't too bad
Sun Tian Tian
2 Top-10 wins (Serena Williams and Patty Schnyder)
1 Singles Title (Tashkent '06, defeating Azarenka, Tulyaganova)
13 Doubles Titles (including 2004 Olympic Gold and 2008 AO Mixed)
Career High 77 (Singles) and 16 (Doubles)
Yeah,she has been so physically weak since last year.
she and her coach think she couldn't play professional tennis match in such a bad health condition.
She hasn't played a match since ITF Beijing 50k in 2005,and she announced to retire rencently.