Decades before Rocky Balboa was running the streets of Philly, boxing's original Rocky was running the streets of Brockton and training to one day become the heavyweight champion of the world. Known as the Brockton Blockbuster, Rocky Marciano was one of the inspirations for Sylvester Stallone's famous character. But Marciano had one thing Balboa didn't: a thunderous roundhouse right-hand punch that knocked out dozens of opponents in the 49 wins and zero losses that made up his professional career. His wins included a career-ending loss for the aging champion Joe Louis and a TV-special match-up against Muhammad Ali.

Jim Braude was joined by author Mike Stanton, also a professor of journalism at the University of Connecticut, who chronicled Marciano's life in his new biography, "Unbeaten: Rocky Marciano's Fight for Perfection in a Crooked World."