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 Unitas Becomes NFL All-Time Passer June 7, 2021 | 0 minutes, 24 seconds read On this day, in 1966 Baltimore's Johnny Unitas throws for 252 yards against the Los Angeles Rams to become the NFL's all-time passing yards leader. October 30, 1966 Sport: Football Trivia sports in this article Football tags in this article Fan On This Day SportsEngine