Following lopsided wins on Saturday, the Trojans (11-1) and Tigers (12-1) both moved up one slot to first and second, respectively.
The Trojans picked up 37 first-place votes and 1,542 points while the Tigers collected 18 first-place nods and 1,516 points.
Oklahoma (12-1) dropped from first to third after its blowout loss to Kansas State, but still received eight first-place votes and 1,449 points.
Michigan remained fourth in the poll, followed by Texas, Ohio State, Tennessee, Florida State, Miami (Fla.), and Kansas State.
The Wildcats moved up five spots after their blow out win over the Sooners in the Big 12 title game.
Georgia dropped from fifth to 11th after losing to LSU, with Iowa, Washington State, Miami (Ohio), Boise State, Florida, Mississippi, TCU and Minnesota in spots 11-20.
The final five are Nebraska, Oklahoma State, West Virginia, Maryland, and Utah.
2014: The Year in Fashion [PHOTOS]
UPI Sports Results for September 19, 2014