Sponsored Content SportsEngine, a brand from NBC Sports Next is the leading provider of Sport Relationship Management (SRM) software, empowering athletes, parents, coaches, and sports organization administrators with tools and services to manage their organizations and sports lives. Read SportsEngine stories Cassius Clay (Ali) Makes His Professional Debut June 7, 2021 | 0 minutes, 27 seconds read On this day, in 1960 after winning the gold medal in the 1960 Olympics, Cassius Marcellus Clay Jr. (later he became Muhammad Ali) made his professional debut winning a six-round decision over Tunney Hunsake. October 29, 1960 Sport: Boxing Trivia sports in this article Boxing tags in this article Fan On This Day SportsEngine