This Super Bowl also meant that Boston and St. Louis would play each other in the championship game or series of all four major North American sports leagues at least once, becoming the first time that that had happened between teams from two specific cities or regions. This was the eighth meeting between teams from Boston and St. Louis for a major professional sports championship overall. Previously, In the NHL, the Bruins had swept the Blues in the 1970 Stanley Cup Finals with Game 4 being remembered for Bobby Orr's Cup-winning overtime goal that sent him flying. In the NBA, the Celtics and Hawks had faced each other in the NBA Finals four times from to , with the Celtics winning three and the Hawks winning one. In MLB, the Cardinals had beaten the Red Sox to win the 1946 and 1967 World Series.
This Super Bowl also meant that Boston and St Louis would play each other in the championship game or series of all four major North American sports leagues at least once becoming the first time that that had happened between teams from two specific cities or regions. This was the eighth meeting between teams from Boston and St Louis for a major professional sports championship overall. Previously, In the NHL, the Bruins had swept the Blues in the 1970 Stanley Cup Finals with Game 4 being remembered for Bobby Orr's Cup-winning overtime goal that sent him flying. In the NBA, the Celtics and Hawks had faced each other in the NBA Finals four times from to , with the Celtics winning three and the Hawks winning one In MLB, the Cardinals had beaten the Red Sox to win the 1946 and 1967 World Series.