Dennis Arthur Murphy was an American sports entrepreneur who helped co-found the American Basketball Association (1967–1976), the World Hockey Association (1972–1979), the original World TeamTennis (1973–1978) with Larry King, Roller Hockey International (1992–1999), and several other trend-setting amateur and professional sports concepts and events. Each of his innovations exhibited ground-breaking marketing and promotional tactics, new rules, and a style of play that forced the evolution of the entrenched incumbent. Among the many visionary rules and promotional concepts introduced by Murphy include the 3-point shot (ABA), the Slam-Dunk Contest (ABA), team cheerleaders (ABA), the first $1 million contract (WHA), and he paved the path for the ever-growing wave of European and Russian hockey players that now play in North America.