Photo taken on July 21 show that little football players are listening to the coach's guidance.During the summer vacation, excellent football players selected from elementary and secondary schools in Lhasa assembled for training, preparing for the upcoming "2013 National Youth Football Summer Camp" in the end of July, 2013. [Photo/Xinhua]

Photo taken on July 21 show that little football players are receiving training. During the summer vacation, excellent football players selected from elementary and secondary schools in Lhasa assembled for training, preparing for the upcoming "2013 national youth football summer camp" in the end of July, 2013. [Photo/Xinhua]

Photo taken on July 21 show that little football players are receiving training. During the summer vacation, excellent football players selected from elementary and secondary schools in Lhasa assembled for training, preparing for the upcoming "2013 national youth football summer camp" in the end of July, 2013. [Photo/Xinhua]

Photo taken on July 21 show that little football players are receiving training. During the summer vacation, excellent football players selected from elementary and secondary schools in Lhasa assembled for training, preparing for the upcoming "2013 national youth football summer camp" in the end of July, 2013. [Photo/Xinhua]