The Bills beat the Chiefs 20-17 on Week 14, and I actually expect KC to get revenge and win this one outright.
The Kansas City Chiefs are 6-2 straight up as a dog in their last eight, including the playoffs, and 5-0 straight up in their last five as a dog away from Arrowhead.
The defense will shine, as the Chiefs are holding their opponents to just 14.6 ppg over their last five and will get their revenge when it matters.