Newshour - How young is too young to compete in elite sport? - ÃÛÑ¿´«Ã½ Sounds

Newshour - How young is too young to compete in elite sport? - ÃÛÑ¿´«Ã½ Sounds
How young is too young to compete in elite sport?
Yu Zidi, who's 12, is the youngest swimmer to win a World Aquatic Championships medal.