What happened: The Chiefs downgraded cornerback Mansoor Delane to Out with a shoulder injury for Sunday's game at Denver. Rookie pass rusher R Mason Thomas will travel to Denver separately from the team for personal reasons.

Why it matters: Delane, the No. 6 overall pick in this year's draft out of LSU, had been listed questionable. Kansas City is 5-1 and holds the top seed, but it comes off a 20-3 loss at Seattle. The Chiefs had already listed Delane and Sneed questionable against Denver.

What to watch: Watch the Chiefs' secondary in Denver, and whether Thomas is active after traveling separately.