What is so special about the world's most decorated Olympian, Michael Phelps? Top sports stars have their say.
원문출처 : http://www.cnn.com/videos/sports/2016/08/08/michael-phelps-is-orig-sfc.cnn
원문출처 : http://www.cnn.com/videos/sports/2016/08/08/michael-phelps-is-orig-sfc.cnn