With half a billion dollars and their reputations on the line, welterweight world champions Manny Pacquiao and Floyd Mayweather Jr. faced off in what was billed as “The Fight of the Century.” The event...

Tae-hwan Park, 26-year-old South Korean swimmer and 2008 Olympic gold medalist, failed a recent doping test administered by the International Swimming Federation (FINA) on Sept. 3, 2014, before the Incheon...