Which undefeated team is primed to go down in Week 9?

As we look ahead to Week 9 of the college football season, the number of unbeaten teams has dwindled to eight after Oklahoma and Wisconsin fell to Texas Tech and Michigan State, respectively, this past weekend.

Which teams are most vulnerable to an upset this coming weekend?

LSU, Alabama and Boise State will enjoy byes, so those squads are safe for now. But let's take a look at the five programs who are in action this weekend and if their opponents pose as a serious threat.

LSU (8-0): Bye (at Alabama the following week)

Alabama (8-0): Bye (vs. LSU the following week)

Boise State (7-0): Bye (at UNLV the following week)

Brandon WeedenICONCan Brandon Weeden and the Pokes get by RG III and Baylor?

Oklahoma State (7-0): vs. Baylor

Stanford (7-0): at USC

Clemson (8-0): at Georgia Tech

Kansas State (7-0): vs. Oklahoma

Houston (7-0): vs. Rice (Thursday)

Oklahoma State definitely has a tough test against Robert Griffin III and Baylor. Can RG III remain in the Heisman race by delivering another clutch performance? Can Phil Bennett's defense step up in Stillwater?

Stanford will look to make it three in a row against a USC squad coming off of its best performance of the season in South Bend. Can David Shaw's squad stop the Trojans' momentum?

Clemson has a difficult road trip to Atlanta, where Paul Johnson's Yellow Jackets will look to put an end to their two-game skid.

Kansas State, however, may have the toughest task of any unbeaten because Oklahoma is coming off of a shocking home loss to Texas Tech. Will the Sooners take out all of their frustrations on the Wildcats?

Finally, expect Kevin Sumlin's Houston squad to roll Rice on Thursday night. If you haven't had the chance to check out Heisman Trophy contender Case Keenum, do so against the Owls.

Email dave.miller@nationalfootballpost.com or follow me on Twitter at Miller_Dave

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