Stanford, Georgia and Oklahoma tumbled in both major polls, which were released Sunday.
The Cardinal (5-1) fell eight spots in the Associated Press and USA Today coaches polls. Stanford went from fifth to No. 13 after losing to Utah.
The Bulldogs (4-2) dropped eight spots in the AP poll and nine spots in the coaches poll. Georgia fell from seventh to No. 15 by the AP and to No. 16 by USA Today after getting beat by Missouri.
The Sooners (5-1) went from 12th to No. 18 in the AP poll and 10th to No. 18 in the coaches poll after its loss to Texas.
Meanwhile, Alabama (6-0) and Oregon (6-0) remain the top two-ranked teams.
Missouri (6-0) was the biggest mover in the polls, climbing from 25th to No. 14 by the AP and entered the coaches poll at 14th.
---Missouri quarterback James Franklin will be out at least six weeks with a shoulder separation, according to CBSSports.com.
Franklin was injured during Saturday's upset win over then-No. 7 Georgia.
Coach Gary Pinkel said Sunday that Franklin has a Grade 2 separation but would not put a timetable on his recovery. He said "anything out there about how long he'll be out is false."
---Mississippi coach Hugh Freeze reported to the Jackson Clarion-Ledger that "things look good" regarding the health of Ole Miss linebacker Serderius Bryant, who was taken off the field in a stretcher on Saturday after making a tackle against Texas A&M.
Further tests will be performed on Bryant, who was given an initial diagnosis of a concussion.
His status for the Rebels' next game has not been determined.