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.
Yankees–Red Sox rivalry
In 2002, when the NFL's New England Patriots held their victory celebration after winning their first Super Bowl and the first championship for the city of Boston since the Celtics won the 1986 NBA Finals, linebacker Larry Izzo fired up the crowd, chanting "Yankees suck!" The chant would become a fixture of Patriots Super Bowl victory rallies following their victories in Super Bowls XXXVIII in 2004 and XXXIX in 2005, which were sandwiched around the Red Sox 2004 World Series win. Dan Shaughnessy wrote about the chant: "Can you imagine a Giants or a Jets celebration in New York City in which a New York player would take the time to chant, 'Red Sox suck? Shaughnessy opined that should such a thing occur, it would be more likely at a Jets celebration, as a Giants celebration, like those of the Mets and the Rangers, would be more likely to feature such chants made in reference to the Philadelphia teams, as one of the Giants' primary rivalries is with the Philadelphia Eagles.