The gymnastics has always been an issue though hasn't it? Way back when Olga Korbut was competeting and looked like a small girl despite being at least 17, ( I looked up her age now and she seems to have knocked a couple of years off as she was the same age as me a while back!) there were stories that the Soviet Bloc were giving their gymnasts drugs to delay puberty.
http://en.wikipedia.org/wiki/Age_controversies_in_gymnastics
http://en.wikipedia.org/wiki/Age_controversies_in_gymnastics