NFL changes football playoff overtime rule
Working Overtime: How to Fix the NFL's Persistent Problem
NFL overtime rule: 49ers' Shanahan says it's fair after Bills-Chiefs
Bills-Chiefs Game Is Most-Watched NFL Playoff in 5 Years
NFL overtime rule change has momentum, executive says
Chiefs outlast Bills in OT to reach AFC title game - The San Diego Union-Tribune
Kansas City Chiefs top Buffalo Bills in overtime in NFL playoff game
The Chiefs' Win Against the Bills Was Ridiculous and Perfect
The Bills-Chiefs Game Was a Reminder That NFL Overtime Rules Suck
Kansas City Chiefs beat Buffalo Bills 42-36 in overtime of divisional round