The opening ceremony of an activity which invites Olympic champions to join in Xinjiang residents' fitness campaign was held at Xinjiang Sports Center in Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region on July 22, 2010. The photo, taken on July 22, 2010, shows Chinese hurdler Liu Xiang kicking a shuttlecock with sports lovers at Xinjiang Sports Center. [Photo: chinanews.com.cn]