The biggest question facing the Kansas City Chiefs as they resume their quest to become the first team ever to win three consecutive Super Bowls is whether 3 1/2 weeks' rest will result in too much rust.

There’s a difference between ‘I think I can’ and ‘I know I can.’ The Chiefs more than any other team in the NFL have the ‘I know I can.’”

The Lions and Chiefs are in a tier of their own odds-wise, thanks to their 15-win seasons and accordant first-round byes. But both have nagging concerns that, if you squint hard enough, begin to look a lot like vulnerabilities. Will any of their potential opponents through the postseason be able to capitalize on those vulnerabilities?

Who is favored to win the Super Bowl in NFL playoff odds? Betting lines for Chiefs, Lions, Bills, Ravens, Eagles, Vikings, Packers, Rams, more teams.