Matt Jones threw a 31-yard touchdown pass to DeCori Birmingham with nine seconds left, and David Carlton made a long extra point to give Arkansas a 21-20 victory over No. 18 LSU yesterday in Little Rock.

Arkansas scored twice in the last half of the fourth quarter to win the Southeastern Conference's West Division title and advance to the conference title game against Georgia next Saturday in Atlanta.

Trailing 20-14 with 34 seconds left, the Razorbacks (9-3, 5-3) got the ball at their 19. Jones completed a 50-yard pass to Richard Smith on the first play.

After an incompletion from the LSU 31, Jones found Birmingham in the back right corner of the end zone. The sophomore slipped behind Randall Gay and outleaped him for the ball. LSU's Travis Daniels was too late to break up the pass.

Arkansas was penalized 15 yards for excessive celebration, however, setting up a 35-yard extra point. Carlton's kick was plenty long enough, but it curved left and was barely good.

The ending was nearly as stunning as LSU's win over Kentucky on Nov. 9, when Devery Henderson caught a 75-yard touchdown pass on the game's final play for a 33-30 victory.

"First of all, I feel very bad for our players," LSU Coach Nick Saban said. "We won a game in 13 seconds and then lost this one in (34) seconds. It's just the way the ball bounces and we were the victim today."

LSU (8-4, 5-3) could have won the West and advanced to the championship game if not for the dramatic touchdown. Jones was just 2 of 13 for 46 yards before completing the two long passes on the final drive.

* TEXAS 50, TEXAS A&M 20: Chris Simms won't win the Heisman Trophy, a national championship or even a Big 12 title. Instead, he will have to be satisfied with doing something no Texas quarterback had done in 55 years: leading the Longhorns to three straight victories over rival Texas A&M in Austin.

Simms passed for 278 yards and three touchdowns to lead 10th-ranked Texas past A&M, a result that certainly won't stem speculation that Aggies Coach R.C. Slocum will be fired.

Simms made his final home game, in front of 83,711 at Royal-Memorial Stadium, a memorable one. He'll leave Texas 15-0 as a starter at home.

"I know everybody back home in New Jersey was watching," said Simms, whose father, Phil, helped the New York Giants win the 1987 Super Bowl. "I had to put that last one good showing on TV.

It's tough to explain -- I almost started crying before the game when I had to hug my mom, but it ended up being a great day."

Texas (10-2, 6-2) broke open a tight game with 27 straight points in the second half. Roy Williams caught touchdown passes of 75 and 38 yards from Simms, Michael Huff returned an interception 28 yards for a touchdown, and Nathan Vasher went 60 yards with a punt return to score.

Texas A&M (6-6, 3-5) had six turnovers, including four by quarterback Dustin Long that led to 16 points for Texas.

* COLORADO 28, NEBRASKA 13: Freshman Brian Calhoun ran for 137 yards as the No. 13 Buffaloes defeated Nebraska for their first victory in Lincoln since 1990.

"The bottom line is that we were in the ballgame," Nebraska Coach Frank Solich said, "but we didn't get the things done that needed to get done in order to make it work."

Fullback Brandon Drum added two touchdowns for the Buffaloes (9-3, 7-1 Big 12), who will go to Houston for next Saturday's Big 12 championship game against Oklahoma. Colorado has won eight of nine after a 1-2 start.

* ARIZONA STATE 34, ARIZONA 20: Mike Williams ran for a career-high 162 yards and four touchdowns and the Sun Devils scored the last 21 points and beat the Wildcats in Tucson.

The Sun Devils (8-5, 5-3 Pac-10) clinched at least a tie for third place in the Pacific-10 Conference and might head to the Sun Bowl.

LSU wide receiver Michael Clayton (14) and Arkansas cornerback Bo Mosley vie for a second-quarter pass in Little Rock. The Razorbacks will play Georgia for the SEC title in Atlanta next Saturday.