Unbeaten

''Unbeaten is one of the best sports books I’ve read in years.'' – Jonathan Eig, author of Ali: A Life.

Rocky Marciano accomplished a feat that eluded legendary champions like Joe Louis, Jack Dempsey, Muhammad Ali, and Mike Tyson: he never lost a professional fight. When he retired in 1956, his record was a perfect 49-0.

Unbeaten is the revelatory biography of one of the greatest heavyweights of all...