Chiefs-Bills Showdown in Buffalo, Playoff Stakes

Week 9 features another high-stakes Chiefs-Bills matchup in Buffalo that could reshape AFC seeding. Kansas City (5-3) has rebounded from an 0-2 start, winning five of six as Patrick Mahomes' leadership and improved offensive execution have keyed the surge. Buffalo (5-2) began 4-0, stumbled midseason and then restored momentum with a 40-9 win over Carolina, making this a potential season-defining measuring stick for the Bills. Their rivalry often turns on one play; Josh Allen leads 4-1 in regular-season meetings while Mahomes is 4-0 against him in the postseason, including last season's AFC Championship where the Chiefs denied Buffalo a first Super Bowl appearance. The matchup also carries extra weight because it may be Kansas City's final visit to Highmark Stadium before the Bills move into a new home next season.