Chiefs-Lions recap, final score: Kansas City loses 21-20 in Week 1 - Arrowhead Pride
Chiefs Fall to Lions, 21-20, in Season-Opener
Chiefs vs. Lions final score, results: Detroit knocks off Patrick Mahomes, Kansas City in NFL opener
Chiefs lose to Lions 20-21
Detroit Lions upset Kansas City Chiefs in Thursday Night Football opener: Highlights, analysis and news - The Athletic
Detroit Lions Upset Kansas City Chiefs in Arrowhead 21-20
Chiefs lose to Lions 20-21
Detroit Lions Upset Kansas City Chiefs in Arrowhead 21-20
Lions spoil Chiefs' celebration of Super Bowl title by rallying for a 21-20 win in the NFL's opener – KIRO 7 News Seattle
Chiefs Fall to Lions, 21-20, in Season-Opener
Five things we learned as the Chiefs defeated the Lions - Arrowhead Pride