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.
2011 New York Giants season
In winning the Super Bowl, the Giants became the first team to have won Super Bowl games broadcast on all four U.S. national networks (CBS, ABC, Fox, and now NBC), as well as the first team to win Super Bowls in four different decades. The Giants-Patriots game was the 11th time that there was a rematch in a Super Bowl. In doing so, the 2011 Giants became the first team with fewer than 10 wins (9 wins – 7 losses) in the regular season to win a Super Bowl. Furthermore, Super Bowl XLVI marked just the second time in Super Bowl history that opening score of the title game occurred with a safety when Justin Tuck pressured Tom Brady, and he was called for intentional grounding; the first instance was Super Bowl IX, when Pittsburgh registered a safety on Hall of Fame coach Bud Grant's Vikings. Eli Manning won his second Super Bowl MVP award in four years after orchestrating another game-winning touchdown drive in the game's final moments.