American football rules - Wikipedia
Super Bowl LI: Were the overtime rules that enabled New England Patriots victory fair?, NFL News
New NFL Playoff Overtime Rules Begin Today - Daily Norseman
NFL owners approve rule change for overtime in playoffs
The Simple Fix to NFL Overtime
NFL owners approve new overtime rule for playoff games
The NFL's overtime rule explained and why fans want to see it changed, Sports
NFL overtime rules 2023: Explaining how the OT format works in football for regular season, playoffs
NFL overtime playoff rules: What is format for OT in the postseason - DraftKings Network
Grading NFL overtime format ideas and proposals - Mandatory possessions, spot and choose, no sudden death, more - ESPN
Super Bowl overtime rules: What happens if regulation ends in a tie?
NFL Passes New Playoff Overtime Rule, Guarantees Each Team A Possession - Steelers Depot
Super Bowl overtime rules: What happens if the game is tied at the end of regulation - The Washington Post
What happens if the Super Bowl ends in a tie score at the end of the overtime period? - Quora