The Bills welcome a foe they know all too well to Highmark Stadium for Week 9 in the Kansas City Chiefs. Sunday's game marks Buffalo's first of four 4:25 p.m. kickoffs. The Bills faced the Chiefs for Week 11 last year and get them two weeks earlier in 2025.

Here are five storylines to follow for Week 9.

1. Where Josh Allen and Patrick Mahomes rank

Two of the league's best quarterbacks are facing off on Sunday afternoon in Josh Allen and Patrick Mahomes. They both own at least one MVP title and hold records that quarterbacks dream of reaching.

Sunday marks the 10 th time the two will see each other in their careers, which includes playoffs. Allen owns a 4-1 record over Mahomes in the regular season, while the Chiefs have been undefeated against Allen in the playoffs.

In those nine ga

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