College football rankings REVEALED: Texas A&M tumble and Vanderbilt slip despite win as postseason looms

Texas A&M fell out of the top five of the AP's college football rankings for the first time in two months on Sunday, while Texas Tech notched its highest spot in a remarkable 17 years.

In the latest Top 25 poll, a season-high four teams from Group of Five conferences are ranked as the top five got a shuffle with a week to go before the postseason bracket is set.

No. 1 Ohio State and No. 2 Indiana, the only remaining unbeatens, are the top two teams for a seventh straight poll heading into their Big Ten title game clash on Saturday. 

No. 3 Georgia and No. 4 Oregon each moved up a spot, and Texas Tech's No. 5 ranking is its best since it spent three weeks at No. 2 in November 2008.

Mississippi remained No. 6 and was followed by Texas A&M, which slipped four spots after its 10-point loss at Texas. Oklahoma, Notre Dame and Alabama rounded out the top 10 for the third straight week.

The weekend results created two top-10 matchups in conference championship games this Saturday. Besides the Big Ten showdown, Georgia and Alabama will play for the Southeastern Conference crown. 

The other Top 25 matchup pits Texas Tech against No. 11 BYU in the Big 12. The Atlantic Coast Conference game matches No. 16 Virginia against a Duke team that is 7-5 and received no votes in Sunday's poll.

No. 12 Miami and No. 13 Vanderbilt traded places in the rankings. The Hurricanes, who finished the regular season with a 31-point road win over Pittsburgh, are the highest-ranked ACC team and hope to receive a College Football Playoff at-large bid. 

Vanderbilt slipped despite beating Tennessee by 21 points on the road.

James Madison, which will host Troy for the Sun Belt championship game Friday, moved up one spot to No. 19 and is the highest-ranked Group of Five team. Three teams from the American Conference are behind the Dukes: No. 20 North Texas, No. 21 Tulane and No. 24 Navy.

North Texas visits Tulane for the American championship game Friday. Tulane, at No. 24, was the only G5 team in last week's CFP rankings.