Kansas City's Tyrann Mathieu out after opening-drive collision with Buffalo's Josh Allen - The Boston Globe
NFL owners approve rule change for OT in playoffs
Bills rally to beat Chiefs 24-20 in playoff rematch
Tony Romo, Jim Nantz not up to Chiefs-Bills classic
NFL overtime rules called out by fans
Does the NFL need to change its overtime rules? - Pride Of Detroit
Does the NFL need to change its overtime rules? : NPR
NFL Agrees To Change Controversial Overtime Rule In Playoffs
NFL overtime playoff rules: What is format for OT in the postseason - DraftKings Network
Overtime Changes Coming to NFL Playoff Games - Sports Illustrated LA Rams News, Analysis and More
Bills Fans Furious at Postgame Taunting From Chiefs LB