San Diego (1-1) remained a game behind Denver in unlikely fashion, thumping the visiting Seahawks 30-21.
Philip Rivers threw three touchdown passes to Antonio Gates, and the Chargers dominated possession by holding the ball for 42:15.
For the second straight week, the Broncos (2-0) jumped out to a big lead and held on for a narrow seven-point victory.
Peyton Manning was 21/26 for 242 yards and three touchdowns.
Kansas City (0-2) finished with more first downs (28-19) and total yards (380-325), and dominated the time of possession (36:14-23:46).
Inactives: Broncos - Cody Latimer, David Bruton, Tony Carter, Ben Garland, Michael Schofield, and Danny Trevathan
Chiefs - De'Anthony Thomas, Aaron Murray, Albert Wilson, Joe McKnight, Jamell Fleming, Laurent Duvernay-Tardif, and Damion Square
Enjoy the games, and Go Vikings (vs New England) and Seahawks (at San Diego)!
Good Morning, Broncos fans! Wes Welker may not be in uniform today, but he figures to be on the field in Seattle next Sunday.
According to Jason La Canfora, it's now expected that the new drug policy will (finally) be finalized early this week.
La Canfora says the latest holdup has been about avoiding policy-related disputes over the next several years.
2014 Punter Rankings – Week 2
32 Colquitt, Britton Denver Broncos
As measured by average annual value, Britton Colquitt is the league's highest paid punter, and makes triple what Brett Kern, his predecessor, makes in Tennessee.
Worst of all, PFF doesn't even take altitude into consideration when ranking kickers and punters, as far as we know.
The league's new drug policy proposal was not ratified on Saturday due to reported unresolved issues.
As a result, Wes Welker has not yet been reinstated, and will not be active for Sunday's game against Kansas City.
Denver figures to keep a roster spot open for Welker until he's reinstated.
Good Morning, Broncos fans! Earlier in the week, the Chiefs added former Broncos Kevin Vickerson (free agency) and Jerry Franklin (promotion from PS).
As of Friday, injury has pushed another familiar player - Ryan Harris - into the starting lineup, at right tackle.
Harris is the Chiefs' third option there, as Donald Stephenson is suspended (PEDs), and Jeff Allen is having elbow surgery which will likely end his season.
The NFL has what appears to be another horrifying scandal on its hands, as Vikings running back Adrian Peterson has been indicted for child abuse in Texas.
Peterson allegedly whipped his four-year-old son with a tree branch as punishment for having pushed another of Peterson's children during a video game.