10 Gold-Medal Knockout Kings
Cassius Clay (Muhammad Ali), Heavyweight, 56-5
Gold Medal – 1960 Olympics, Rome, Italy
Muhammad Ali is arguably the most famous athlete of all time. He was named Sportsman of the Century by Sports Illustrated and was in too many epic battles in the ring to count. Before he became a sports and cultural icon, he was just a kid named Cassius from Kentucky who won a gold medal for his country.