NFL overtime history: Revisiting the 12 playoff games that have gone to OT since 2010 rule change
NFL OT rules: Chiefs QB Patrick Mahomes says you 'win the game in whatever way' - Arrowhead Pride
NFL owners approve overtime rule change in playoffs
NFL world reacts to overtime rules preventing Josh Allen, Bills from responding vs. Chiefs
NFL changes playoff overtime rule after Kansas City Chiefs vs Buffalo Bills thriller, National Sports
Explained: NFL's new overtime rule for the playoffs - Los Angeles Times
Chiefs tried to change overtime rules after their playoff loss to the Patriots. Now those rules saved them. - Pats Pulpit
NFL owners change overtime playoff rule
What Are New NFL Playoff Overtime Rules?