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 Sonny Liston vs. Floyd Patterson II May 13, 2021 | 0 minutes, 26 seconds read On this day, in 1963 in a rematch in Las Vegas, Floyd Patterson, a 4-1 betting underdog, was knocked down three times and counted out at 2:10 of the first round. July 22, 1963 Sport: Boxing Trivia sports in this article Boxing tags in this article Fan On This Day SportsEngine