Patrick Mahomes, Josh Allen and Travis Kelce get all the publicity. What isn't so publicized is how well Kansas City and Buffalo are defensively. 

The Chiefs rank in the top-five in fewest points, yards and rushing yards allowed per game. Buffalo gives up the ninth-fewest points in the league and is tied for second with 19 takeaways. 

The offenses of these two powerhouses are down because of injuries. 

Kansas City is without its best wideout, Rashee Rice, and top runner, Isiah Pacheco. Mahomes isn't having a great statistical year ranking 17th in the passer ratings. Kicking could become an adventure now for the Chiefs as normally reliable Harrison Butker is out with a knee injury replaced by Spencer Shrader, who was on the Jets' practice squad. 

The Bills have become more ground-oriented this season. That eats clock. Josh Allen will be down two of his four best receivers with Keon Coleman and tight end Dalton Kincaid ruled out. There's a chance, too, the Bills could be without Amari Cooper, who has been sidelined the past two games with a wrist injury, and offensive right tackle Spencer Brown, who is questionable due to an ankle injury.