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 New England Patriots
In the Super Bowl, though the Bears had not allowed a point in the playoffs, the Patriots took an early 3-0 lead after a Walter Payton fumble in the 1st quarter. This resulted a field goal by Tony Franklin.