Iconic boxing writer and historian Bert Sugar, who died on March 25 of cardiac arrest, was a living, breathing encyclopedia of the sweet science. Here's a look at Sugar's 13 greatest pound-for-pound fighters of all time, as appearing in his 2011 volume, The Ultimate Book of Boxing Lists . Heavyweight champion from 1926-28. Pro record: 61 wins, 40 KOs, one loss, one draw, one no contest.
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Featherweight champion 1928; lightweight champion 1930-33 and 1935-36; junior welterweight champion 1931-32 and 1933. Pro record: 137 wins, 44 KOs, 24 losses, 10 draws, four no-decisions.