KANSAS CITY, Mo. >> Chiefs coach Andy Reid is planning to give running back Isiah Pacheco most of the week off to rest his sore ribs.

Reid hasn’t decided who else will get time off before their regular-season finale in Denver.

The Chiefs (15-1) already have clinched the No. 1 seed in the AFC playoffs, and with it the lone first-round bye, rendering their game against the Broncos meaningless to them. But while Reid will no doubt rest Pacheco and anyone else dealing with nagging injuries heading into the postseason, there is also the risk of rust setting in among starters who get such a long break.

Kansas City would not resume its pursuit of an unprecedented third straight Super Bowl title until at least Jan. 18.

“We’ll be OK from it,” Reid said of the long break, “because of the rest we gain here.”

It’s almost certain that Patrick Mahomes will get the majority of Week 18 off, if not all of it, especially given the high ankle sprain that the two-time NFL MVP played through in a win over Pittsburgh on Christmas Day.

And that could mean that Carson Wentz makes his first start of the season in a game that has plenty of significance for the Broncos.

If they win, they would join the Chiefs and Chargers among three teams from the AFC West in the postseason.

Porter trends toward playing in finale

PITTSBURGH>> The Pittsburgh Steelers and their struggling defense could be at full strength for the regular-season finale against Cincinnati.

Coach Mike Tomlin said he is hopeful cornerback Joey Porter Jr. will be available when the Steelers (10-6) host the Bengals (8-8) on Saturday night. Porter missed a 29-10 loss to Kansas City on Christmas Day with a knee injury.

Patrick Mahomes dominated Pittsburgh’s secondary for 320 yards and three touchdowns as the Steelers dropped their third straight to lose control of the AFC North. The only way the Steelers can win the division is by beating Cincinnati coupled with a Baltimore loss to Cleveland.

Huntley will get more practice reps than Tua

MIAMI GARDENS, Fla.>> There are several unknowns for the Miami Dolphins entering their regular-season finale, beginning with their starting quarterback.

Coach Mike McDaniel says the Dolphins are in a “gray area” with Tua Tagovailoa after the quarterback was scratched ahead of Sunday’s win at Cleveland due to a hip injury.

Tagovailoa’s body didn’t respond the way the team hoped with the injury sustained in Week 15 against Houston, McDaniel said, and he doesn’t know about the starter’s availability.

Tyler Huntley will get more practice reps this week.