Despite big scares for Notre Dame and Alabama, a less-than-impressive defensive effort from Oregon, and an apparent injury to K-State's quarterback, all four undefeated teams at the top of the rankings made it through last week.

This week, Alabama gets an interesting test against Texas A&M and freshman quarterback Johnny Manziel. Notre Dame and Oregon have relative walkovers against Boston College and Cal, respectively. K-State has a tricky trip to Forth Worth to face Gary Patterson and Texas Christian.

There are only three games featuring two ranked teams this week. Outside of Alabama/A&M, the biggest matchup is clearly Stanford/Oregon State. Somehow, LSU/Mississippi State is a meeting of two ranked teams, but seriously, how the hell are the Bulldogs still ranked? Shockingly, there are no big games in the Big 10.

The rest of the Big 12 schedule is below. K-State's game thread will go live one hour before game time.

Texas Tech vs. KU, Jones AT&T Stadium, Lubbock, Texas, 11:00 a.m., FSN

Texas vs. Iowa State, Darrell K. Royal -- Texas Memorial Stadium, Austin, Texas, 11:00 a.m., LHN

Oklahoma State vs. West Virginia, T. Boone Pickens Stadium, Stillwater, Okla., 2:30 p.m., ABC

Oklahoma vs. Baylor, Memorial Stadium, Norman, Okla., 2:30 p.m., FSN