What happened: Kenneth Walker III arrived at Arrowhead ahead of his first game with Kansas City. The scheduled matchup remains 0-0 before kickoff.
Why it matters: Kansas City enters the night 0-3 and on a three-game skid, adding weight to any backfield change for the Chiefs. Denver is 2-1, while Kansas City has averaged 12.0 points through its first three games.
By the numbers: Kansas City is 0-3 this season, with a three-game losing streak, 12.0 points scored per game and 15.0 allowed. Denver is 2-1, averaging 24.7 points scored and 15.3 allowed, and enters on a one-game winning streak.
What to watch: Watch how quickly Walker is worked into Kansas City's offense in his first game with the club. The broader test is whether the Chiefs can halt their 0-3 start against a Denver team that opened 2-1.