Yao Ming, center, ambassador of Youth Olympic Games poses for photo with athletes at the Youth Olympic Village in Nanjing, Jiangsu province, Aug 25, 2014. [Photo/nanjing2014.org]
In photos: US Open day 1 preview
Xu wins 400m hurdles crown in cliff-hanger finish
Birthday party fun at media center
Liang wins gold medal in women's 100m
China Open
US Open
Nanjing Youth Olympics
World Cup winners and losers