[tps_header]9. Rocky Marciano[/tps_header]
The Brockton Blockbuster, Rocky Marciano (49-0, 43 KOs) won his first sixteen career bouts by knockout.
Some of the Brockton, Massachusetts fighters most notable victories came over aging ex-champions including Joe Louis who was 37 years old and Jersey Joe Walcott who was 38 years old.
Although he retired undefeated, Marciano is often times ranked behind legends like Joe Louis, Jack Dempsey and Muhammad Ali for not beating top-notch opponents in their prime.
Marciano was known for having a big punch and according to Boxing Illustrated, Marciano’s punch packed more energy than an armor-piercing bullet.
