N.F.L. to Change Postseason Overtime Rule After Bills' Playoff Loss - The New York Times
Explained: NFL's new overtime rule for the playoffs - Los Angeles Times
NFL Overtime Rule Change Giving Both Teams Possession Approved For Playoffs Only, News, Scores, Highlights, Stats, and Rumors
NFL changes overtime rule for playoff games - Acme Packing Company
NFL changes football playoff overtime rule
NFL changes overtime format only for playoff games - The Washington Post
Sports Take: NFL needs to change overtime rules
Overtime rules come under fire after Chiefs win playoff thriller
How do NFL overtime rules work in the Super Bowl? - The San Diego Union-Tribune
NFL changes postseason overtime rule to guarantee each team a possession - The Boston Globe