2021 AFC Divisional playoff game (Buffalo–Kansas City) - Wikipedia
Buffalo Bills 24 vs 20 Kansas City Chiefs summary: stats, and highlights
Bills vs. Chiefs score, result: Patrick Mahomes looks unstoppable in return to Super Bowl
Bills vs. Chiefs: Final score and full highlights
Bengals vs. Chiefs final score: Cincinnati wins stunner 27-24 in overtime, headed to Super Bowl 56 - DraftKings Network
Drive by Drive: Kansas City Beats Buffalo in Overtime - The New York Times
How Kansas City and the Rams Advanced in the NFL Playoffs - The New York Times
Chargers 24-27 Chiefs: Justin Herbert injures his ribs as Kansas City comeback from 10-point deficit to win, but LA QB said to be 'OK', NFL News
Allen, Bills down Chiefs in NFL thriller
Drive by Drive: Kansas City Beats Buffalo in Overtime - The New York Times
Chiefs beat Bills in OT to advance to fourth straight AFC championship game - The Washington Post