HOW SIMONE BILES CHANGED GYMNASTICS

THERE ARE TWO MAIN FEATURES ANY ATHLETE EARNING the Greatest of All Time title needs to possess-longevity and ability.

- ALICE PARK

Think Michael Jordan's six NBA championships over 15 seasons, Tom Brady's seven Super Bowl rings across 23 seasons, and Michael Phelps' 23 gold medals over five Olympics. Then there is Simone Biles, who is not only training for her third Olympic Games as the most decorated gymnast in history-with 30 world-championship medals, nine national all-around champion titles, and seven Olympic medals-but also changing the sport itself.

Though Biles could at this point just continue competing with the skills she's perfected over her storied career, she keeps raising the stakes.