Indian athlete Dutee Chand has been fighting the ban for "hyperandrogenism," or the presence of high levels of testosterone in the body, that has made her ineligible to compete as a sprinter. Rafiq Maqbool/AP hide caption

itoggle caption Rafiq Maqbool/AP

The Olympic flag flutters near the Cauldron at the Olympic Park during the 2014 Sochi Winter Olympics. Adrian Dennis/AFP/Getty Images hide caption

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Newspaper clippings of young Donnie Dunagan from the early '40s. Courtesy of Donnie and Dana Dunagan. hide caption

itoggle caption Courtesy of Donnie and Dana Dunagan.

Actor Jake Gyllenhaal stars in Southpaw, a new movie about a junior middleweight boxing champion who faces adversity. Scott Garfield/The Weinstein Company hide caption

itoggle caption Scott Garfield/The Weinstein Company

Willis Conover, an expert on jazz, broadcasts "Music USA" from his Voice of America studio in Washington in March 1959. AP hide caption

itoggle caption AP