In pictures: China's ball boys traing for World Cup (4/5)

2014 FIFA World Cup ball boy Wang Yifan of China trains with his school soccer teammates in the Dianliu No.1 Elementary School in Jinan, capital of east China's Shandong Province, June 10, 2014. Wang Yifan along with other 5 ball boys from China will serve the FIFA World Cup 2014 in Brazil. (Xinhua/Xu Suhui)