Updated Sep 13, 2015 at 2:17p ET
Three Southeastern Conference teams fall out of the AP Top 25 and Auburn drops 12 spots after the league that set a record for most teams in the college football rankings last week had a rough weekend.
Arkansas, Tennessee and Mississippi State all drop out after losses Saturday. The Tigers needed overtime to beat Jacksonville State of the FCS and slip from No. 6 to No. 18.
The SEC was down to seven ranked teams, still the most of any conference.
Ohio State remains No. 1, but the Buckeyes are no longer unanimous. No. 4 Michigan State receives two first-place votes after beating Oregon 31-28. Alabama remains No. 2. TCU is 3.
No. 19 BYU jumps into the rankings after beating Boise State and knocking out the Broncos.
AP college football website: collegefootball.ap.org