Simone Biles says gymnastics rivalry with friend Rebeca Andrade has ‘pushed the sport forward’

Simone Biles may be considered one of the greatest gymnasts in history, but the American still credits the impact that her Brazilian rival Rebeca Andrade has had on the sport.

​ Simone Biles may be considered one of the greatest gymnasts in history, but the American still credits the impact that her Brazilian rival Rebeca Andrade has had on the sport. Read More Breaking News, Latest News and Videos | CNN