Swimming champion started swimming at the age of
The USWNT star started kicking the ball at the age of
The USWNT legend Carli spent 16 years on the field.
The fastest man on earth first competed in Olympics in 2004 and retired in 2016.
Gymnastics GOAT, Simone Biles started showing her moves on mat at the age of
America's most decorated sprinter started running in her high school.