Chiefs proposed NFL playoffs OT rules changes before beating Bills
New NFL overtime rules: Explaining the OT format change proposal
College football playoff overtime: How does it work? - Sports Illustrated
It's time for the NFL to change its overtime rules
Why does the NFL even have a clock in playoff overtime? They will play until someone wins. - Quora
Does the NFL need to change its overtime rules? : NPR
NFL changes football playoff overtime rule
Double Overtimes and the NFL Playoff Overtime Rules – Quirky Research
NFL owners approve rule change for overtime in playoffs
The NFL's overtime rule explained and why fans want to see it changed
The NFL's overtime rules, explained
NFL overtime rules: 'Extended period' OT is gaining momentum - Sports Illustrated
NFL overtime rules: A lot of fans want the league to make changes