Seventeen teams have made it through the first third of their schedules with 4-0 records. Here are five with shots to make it unbeaten through the regular season and five that probably will have their bubbles burst.
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First, the ones with a chance:
OHIO STATE
Why Buckeyes keep winning: The defending national champions, winners of 17 straight, are the most talented team in the country.
Why they might not: If they don't shore up some inconsistencies on offense.
Next tough test: Nov. 21 vs. Michigan State.
Star, so far: Adolphus Washington has played the best on a defensive line stocked with NFL talent.