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Floyd Mayweather Jr. holds his undefeated record to be self-evident of his greatness, but his "zero" is just a number. In truth, it is an epic struggle -- or even a loss -- that could elevate his greatness to legend.

BROCKTON, Mass. -- Raise your hand if you had Brockton with two wins, and two hard-nosed, convincing victories, against two of the preseason favorites in the Catholic Conference. Didn't see too many hands raised outside of Rocky Marciano Stadium. ...

Sept. 18, 1963: This day 49 years ago brought about the end of Manhattan's Polo Grounds, the last of four New York stadiums to bear that name. It was an unceremonious end, too -- with just 1,752 people on hand to see the second-year New York Mets...

Rocky Marciano was a heavyweight boxing champion. He retired as the only heavyweight champion in boxing history never to lose a professional fight....

Dana White is thrilled to bring UFC to Boston

Forget the glossy record and the fact that he took to the sport in his 20s; Rocky Marciano secured his place in boxing history -- and in Massachusetts folklore -- with one perfectly timed right cross to Jersey Joe Walcott's chin, writes Don Stradley.

Head punches can be concussive but body punches, when timed correctly, can end fights in paralyzing -- and just as dramatic -- fashion. Graham Houston recounts his 10 favorite one punch body-blow knockouts.

Ruslan Chagaev outpointed Nikolai Valuev on Saturday to take the 7-foot Russian's WBA heavyweight title.

High res photos of 20-11 of the 50 greatest boxers.

Trainer Tommy Gallagher identifies with the old-school feel of "The Contender" reality show. Gallagher himself came up the ranks in similar fashion, Joe Santoliquito writes.

Rocky Marciano owns the best record of all time, not because of natural talent but because of his amazing determination, according to boxing historian Bert Sugar.

Notes on Rocky Marciano

The Rocky Marciano-Jersey Joe Walcott bout in 1952 showed why Marciano truly had the heart -- and chin -- of a great champion, Bert Sugar writes.

Notes on Rocky Marciano

The Rocky Marciano-Jersey Joe Walcott bout in 1952 showed why Marciano truly had the heart -- and chin -- of a great champion, Bert Sugar writes.

Rocky Marciano owns the best record of all time, not because of natural talent, but because of his amazing determination, according to boxing historian Bert Sugar.