Michael Jordan on anyone's list?
#10. Jackie Joyner-Kersee: Basketball, Track
Joyner-Kersee is widely considered the greatest female athlete of the 20th century. She showed that ability on the basketball court, scoring over 1,000 points for UCLA, but she's best known for her feats on the world stage in track and field. She competed in four Summer Olympics (1984, '88, '92 and '96), winning three gold medals and a silver in the heptathlon. She also won a gold and three bronzes in the long jump. She still holds the world record in the heptathlon and owns the top six scores of all time.

#10. Jackie Joyner-Kersee: Basketball, Track
Joyner-Kersee is widely considered the greatest female athlete of the 20th century. She showed that ability on the basketball court, scoring over 1,000 points for UCLA, but she's best known for her feats on the world stage in track and field. She competed in four Summer Olympics (1984, '88, '92 and '96), winning three gold medals and a silver in the heptathlon. She also won a gold and three bronzes in the long jump. She still holds the world record in the heptathlon and owns the top six scores of all time.