Peyton Manning went virtually untouched by Kansas City's sack-happy defense Sunday night, throwing for 323 yards and a touchdown to lead the Denver Broncos to a 27-17 victory over the NFL's last undefeated team.
The Chiefs, who came into the game with a league-leading 36 sacks, barely breathed on Manning, who finished 24 for 40.
The Broncos tied Kansas City at 9-1 atop the AFC West with a rematch set in two weeks.
Denver fell short of its league-leading average of 41.2 points but the Chiefs, who came in allowing a NFL-low 12.8 per game, couldn't keep up.
Alex Smith threw for 230 yards and two touchdowns for Kansas City, which hadn't lost since a 38-3 setback in Denver last December to close out a 2-14 season.