There was a time when the Big 12 championship game was routinely a dream-wrecker for national title contenders.
From the first Big 12 title game in 1996 to 2010, the last before it took a hiatus while the conference realigned, the league's championship was won by the lower-ranked team five times. There was also a memorable near-upset.
No. 9 Texas tries to become the latest Big 12 team to spoil the conference's chances at a national championship Saturday when it faces No. 5 Oklahoma in Arlington, Texas. The Longhorns beat the Sooners in the regular season on a last-second field goal.
The very first Big 12 championship game set the tone for chaos to come: No. 3 Nebraska was upset 37-27 by unranked Texas. Two years later Texas A&M knocked off No. 2 Kansas State, keeping the Wildcats out of the very first BCS championship game. In 2003, Kansas State threw the BCS for a loop, blowing out No. 1 Oklahoma 35-7. The Sooners still made the championship game.
Missouri was No. 1 in the country in the unpredictable 2007 season when it was beaten by Oklahoma in the Big 12 title game. Texas nearly had a BCS championship game appearance slip away in 2009 when it beat Nebraska 13-12, a game remembered most for Ndamukong Suh's dominant performance for the Cornhuskers.
The return of the Big 12 title game came with a new format. The 10-team conference no longer has divisions, but matches Nos. 1 and 2 in the standings. And because the Big 12 plays a round-robin, nine-game conference schedule, the championship game will always be a rematch. Conference leadership believed it needed an extra quality game to best position its champ for playoff selection and the risks outweighed the reward.
Oklahoma beat TCU to make the playoff last season. We'll see if Big 12 volatility makes an appearance with the Sooners in prime position to make it again, sitting at fifth in the playoff rankings, behind Georgia, which plays top-ranked Alabama in the Southeastern Conference championship.
MAC championship: Buffalo (minus 4) vs. Northern Illinois at Detroit
Some potential early-round NFL draft picks: WR Anthony Johnson and LB Khalil Hodge for the Bulls and DE Sutton Smith and OT Max Scharping for the Huskies ... BUFFALO 28-20.
Pac-12 championship: No. 17 Utah (plus 5) vs. No. 10 Washington at Santa Clara, California
Utes looking for first Pac-12 championship since joining the conference in 2011 ... WASHINGTON 21-20.
Sun Belt championship: Louisiana-Lafayette (plus 18½) at Appalachian State
First Sun Belt championship game ... APPALACHIAN STATE 42-21.
Conference USA championship: UAB (plus 1) at Middle Tennessee
Blue Raiders beat the Blazers, who had already clinched C-USA West, 27-3 last week to earn a rematch ... UAB 23-20.
American Athletic championship: Memphis (plus 3) at No. 7 UCF
Last two meetings, including last season's AAC championship, have been wild affairs. The Knights won both by a combined 92-85, but UCF won't have injured QB McKenzie Milton this time ... MEMPHIS 38-35.
SEC championship: No. 4 Georgia (plus 13) vs. No. 1 Alabama at Atlanta
Only SEC title game between the Dawgs and Tide was one of the best, 32-28 Alabama, decided at the goal line in 2012 ... ALABAMA 38-21.
ACC championship: Pittsburgh (plus 26½) vs. No. 2 Clemson at Charlotte, North Carolina
Tigers trying to become first team to win four straight ACC championship games since it started in 2005 ... CLEMSON 42-10.
Big Ten championship: No. 21 Northwestern (plus 14) vs. No. 6 Ohio State at Indianapolis
Plucky Wildcats are in Big Ten title game for first time since it started in 2011 ... OHIO STATE 38-17.
Big 12 championship: Texas (plus 7½) vs. Oklahoma at Arlington, Texas
Sooners are allowing 47.5 points per game over the last four and have won them all ... OKLAHOMA 49-38.
Mountain West championship: Fresno State (plus 2½) at Boise State
Can the Bulldogs snap their blue-turf blues? Fresno State is 0-10 at Boise ... FRESNO STATE 24-20.
Last week: 18-7 straight; 15-10 against the spread.
Season: 197-72 straight; 145-145-3 against the spread.
Upset specials: 7-6 (straight up).
Best bets: 5-6 (against the spread).
Follow Ralph D. Russo at https://twitter.com/ralphDrussoAP and listen at https://podcastone.com/AP-Top-25-College-Football-Podcast
More AP college football: https://apnews.com/Collegefootball and https://twitter.com/AP_Top25