Biggest obstacle for every College Football Playoff contender

The two-team race many projected before the 2019 season is a lot more crowded now.

Defending national champion Clemson and runner-up Alabama are still very much in the CFP picture, but so are others. College football's upper crust this season is Chicago-style: thick and palatable. It is also likely to thin out over the next month, as early contenders face more tests, including some against one another.

But every top team has a potential fatal flaw, whether it's a position group, an entire unit, an unfavorable schedule or something else. Here's a look at the latest AP Top 10 teams and their potential weaknesses entering the midsection of the season.