By Big Terrence Ruth: The date is September 23, 1952, and all-time great Rocco Francis Marchegiano, a.k.a. Rocky Marciano, has just knocked out Jersey Joe
For the first time in the four-belt era, undisputed super middleweight champion Canelo Alvarez will defend his titles against another undisputed champion when he meets super welterweight king Jermell Charlo on Saturday at T-Mobile Arena in Las Vegas.
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