AFC Championship Game History: Most Wins, Losses and Appearances – NBC 5 Dallas-Fort Worth
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Visual look of every AFC champion since 1970 : r/nfl
NFL official explains apparent extra down for Chiefs in AFC championship win over Bengals
2004 AFC Championship Game
Chiefs-Bills score: Chiefs defeat Bills 42-36 in OT; advance to AFC Championship - Arrowhead Pride
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A.F.C. Championship Game: A.F.C. Championship: Kansas City Beats Cincinnati, 23-20, With Late Field Goal - The New York Times
Chiefs become AFC Champions with 23-20 victory over Bengals, Super Bowl LVII is next! - Arrowhead Pride