Oscar De La Hoya may be battling for more than a championship belt Saturday in Las Vegas. He may be fighting for his legacy. The WBC junior middleweight champ, who meets pound-for-pound king Floyd Mayweather at the MGM Grand in Las Vegas, has had an enigmatic, strange career. For all of his glory and fame and status as the world’s most recognized and monetarily-fit boxer, his ring accomplishments have often left experts scratching their heads about his place in boxing history.