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?

While it's too soon to know which two teams will square off in February, here's a quick guide to what we know about Super Bowl 59.