I read some comments by the players on Weibo and Guo Yan said to a reporter that her arm injury was to risky to try and become fully fit for the London 2012 Olympics.
This is the exact translation
Guo Yan said in an interview with reporters, decided to start competing for the London Olympics 2012, already well unsuccessful preparation, because of their age and do not have the strongest advantage. His arm injury is uncertain, if the rush to participate in the Olympic Games, but also irresponsible for the collective. There are regrets, no regrets, this is today, said Guo Yan, the maximum sentence