Tennis player Li Na of China reacts during a news conference announcing her retirement in Beijing September 21, 2014. Li, Asia's only grand slam singles champion, announced her retirement from tennis ... more 
Tennis player Li Na of China reacts during a news conference announcing her retirement in Beijing September 21, 2014. Li, Asia's only grand slam singles champion, announced her retirement from tennis on Friday, succumbing to the effect of long-term knee injuries. REUTERS/Petar Kujundzic (CHINA - Tags: SPORT TENNIS HEADSHOT PROFILE) less 
1 / 30
Reuters | Photo By PETAR KUJUNDZIC / REUTERS
Sun, Sep 21, 2014 2:21 AM EDT