Kansas City Chiefs (5-3) at Buffalo Bills (5-3)

Sunday, 1:00 p.m. ET, at Ralph Wilson Stadium, Orchard Park, N.Y. – TV: CBS

*TV announcers: Spero Dedes, Solomon Wilcots

*Keys to the game: QB Kyle Orton is taking care of the ball and the Bills are plus-seven in turnover margin, while Chiefs counterpart Alex Smith is the model game manager. He has one interception in 169 pass attempts over his past seven games.

Neither offense could be described as explosive, and each team will lean on special teams and defense to scrap for field position in a matchup that looks even across the board, even if Bills WR Sammy Watkins (groin) cannot play.

Kansas City’s offensive edge is a consistent ground game with multiple prongs, the most lethal being RB Jamaal Charles. The Bills don’t have their top two backs — Fred Jackson (groin) might try to play at less than full strength — and that heaps a mountain of pressure on Orton.

The Chiefs are not exotic in their defensive approach, either, getting grand contributions from fill-in ILB Josh Mauga and finally have S Eric Berry back.

*Matchup to watch – Chiefs OT Ryan Harris vs. Bills DE Mario Williams: Harris stepped in for the injured Jeff Allen, who was filling the tackle spot for the suspended Donald Stephenson. Harris is keeping the gig with Stephenson to the roster and his performance improves from week-to-week. He’ll have his hands full in Buffalo with Williams, who has 82.5 sacks over his career and six sacks, a forced fumble and 21 total tackles in eight games.

*Player spotlight – Bills RB Fred Jackson: Hoping to get his injured groin healthy, Jackson’s status for the Chiefs game is unknown. He practiced Wednesday, but with Buffalo playing four days later at Miami, it may not be wise to rush Jackson back. Without him, the load falls to Anthony Dixon and Bryce Brown.

*Fast facts: The Chiefs’ longest pass play this season went 34 yards; every other NFL team has a long gain of at least 35. … The Bills have a sack on 7.8 percent of opponents’ pass plays. … The Chiefs lead the NFL with only two TD passes of 20-plus yards allowed.

WHO WILL WIN AND WHY

Sound, disciplined football on both sides could come down to the final possession. Orton leads the NFL in third-down completion percentage (73) and fourth-quarter passer rating, and gets the nod with the Bills at home.

*Our pick: Bills 23-22