American football rules
Super Bowl LI was the first Super Bowl to go into overtime with a 28-all tie between the Atlanta Falcons and New England Patriots, which the Patriots eventually won with James White scoring a touchdown on the Patriots' first drive.
History of the Boston Red Sox
With the New England Patriots winning Super Bowl XXXVIII in February, Boston became the first city since Pittsburgh in 1979 to have both Super Bowl and World Series champions in the same year. Their winning Super Bowl XXXIX during the offseason made Boston the first city since Pittsburgh in 1979–1980 to have two Super Bowl and World Series championships over a span of 12 months. After the Bruins won the 2011 Stanley Cup Finals, which made Boston the first city to win championships in all four sports leagues in the new millennium, Dan Shaughnessy of "The Boston Globe" ranked all seven championships by the Patriots, Red Sox in 2004 and , the Celtics in , and the Bruins and picked the Red Sox win in 2004 as the greatest Boston sports championship during the ten-year span.