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.
Russell Wilson
The Seahawks became the first defending champion to return to the Super Bowl since the 2004 Patriots. They faced the New England Patriots in Super Bowl XLIX, where they were defeated by a final score of 28–24. Although the Seahawks led 24–14 heading into the fourth quarter, the Patriots scored two consecutive touchdowns as they took a four-point lead with 2:02 remaining. Wilson led the Seahawks to the Patriots' one-yard line with 25 seconds remaining, but Patriots cornerback Malcolm Butler intercepted a pass intended for Ricardo Lockette, sealing the victory for the Patriots.