The top five in the RCS NCAA Poll Averages remains unchanged, with LSU as the unanimous top team and Alabama as the unanimous number two. And, you may have heard, those two are playing each other this weekend in Tuscaloosa.

Nebraska moved up six spots to join the top ten, rising from 14^th to 8^th after beating Michigan State. And after being out of the rankings Ohio State shot back in with their win over Wisconsin and up to 29^th.

Texas A&M saw the big plummet of the week, dropping from 15^th to 28^th after losing to Missouri. Texas Tech also fell down the rankings from 21^st to 36^th after being rocked by Iowa State. (It should be noted that many of the lower ranked teams this week were not ranked whatsoever in the AP or Coaches poll. Teams not ranked in those polls or not in the top 40 of the computer rankings or blogpoll were given a default value of 41. For example Texas Tech was only ranked by the blogpoll (at 34^th) and not the other polls but still came in at 36^th overall.)

Of course there is the one huge matchup this week, but it's not the only showdown between teams in the top 40.

No. 1 LSU @ No. 2 Alabama - 8:00pm EST, CBS
No. 10 South Carolina @ No. 9 Arkansas - 7:15, ESPN
No. 15 Kansas State @ No. 3 Oklahoma State - 8:00pm, ABC
No. 28 Texas A&M @ No. 7 Oklahoma - 3:30pm, ABC
No. 6 Oregon @ No. 29 Washington - 10:30pm, FSN
No. 36 Texas Tech @ No. 23 Texas - 12:00pm, FX
No. 34 Missouri @ No. 39 Baylor - 7:00pm, FSN