Oklahoma defeated No. 1 Texas 27-24 on Saturday in the annual Red River Rivalry at the Cotton Bowl in Dallas, pulling off a major upset against its bitter SEC rival. The Sooners overcame a sluggish first half and a 17-7 deficit to rally in the second half, delivering a crucial victory for head coach Brent Venables after consecutive losses to Michigan and Georgia.

Texas appeared positioned to extend its recent dominance early in the game. Quarterback Arch Manning connected with wide receiver Cam Coleman for a 41-yard touchdown pass in the first quarter, giving the Longhorns a 7-0 lead. Manning later found Ryan Wingo for a 34-yard touchdown in the second quarter, helping Texas build a 14-7 advantage before a 23-yard field goal extended the lead to 17-7 just before halftime.

Manning's deep passing game provided Texas with its biggest offensive moments early, but the Longhorns struggled to sustain drives consistently. Oklahoma's defense pressured Manning and kept the Sooners within striking distance despite the offense's early difficulties. Texas entered the matchup ranked No. 1 nationally after opening the season 4-0, including victories over Ohio State and Tennessee.

Oklahoma initially struggled to generate offense against the Longhorns' defensive front. Quarterback John Mateer faced repeated pressure, while the Sooners managed only two rushing yards on 12 carries during the first half. Texas linebacker Colin Simmons was among the defenders disrupting Oklahoma's offense, recording a sack and helping force a fumble on the Sooners' opening possession.

The Sooners found a breakthrough through special teams when defensive lineman Danny Okoye blocked a Texas punt in the end zone. Dakoda Fields recovered the ball for a touchdown, cutting the deficit to 7-7 before Texas regained control. The special-teams score proved critical as Oklahoma searched for ways to remain in a game where its offense had struggled to move the ball.

After halftime, Oklahoma began to turn the momentum. Running back Lloyd Avant broke off a 42-yard run early in the third quarter, providing the Sooners with a much-needed explosive play. Kicker Tate Sandell later connected on a 53-yard field goal after a Texas timeout helped keep Oklahoma's drive alive, trimming the Longhorns' advantage to 17-10.

Oklahoma continued its comeback in the fourth quarter. Avant scored a rushing touchdown to tie the game at 17-17, capping a drive aided by a defensive pass-interference penalty against Texas. The Sooners' offense had finally found the end zone, while the Longhorns struggled to maintain the momentum they established before halftime.

The game took another dramatic turn when Texas quarterback Arch Manning threw an interception to Oklahoma defensive back Peyton Bowen. Bowen returned the pick 42 yards for a touchdown, giving the Sooners a 24-17 lead and igniting Oklahoma's side of the Cotton Bowl. The defensive score highlighted how turnovers and defensive pressure had become decisive factors in the rivalry.

Texas responded with a late scoring drive to tie the game at 24-24. Manning connected with Coleman for a 42-yard gain before finding Jermaine Bishop for a 15-yard touchdown pass, restoring the Longhorns' hopes of escaping with a victory. Oklahoma, however, answered to finish the game at 27-24, completing the comeback and handing Texas its first loss of the season.

The result carries major significance for Oklahoma, which entered the matchup at 2-2 after its 41-13 loss to Georgia. A win over the nation's top-ranked team gives the Sooners a major conference victory and new momentum as they continue their SEC schedule.

For Texas, the defeat ends its unbeaten start and raises questions about an offense that struggled to sustain drives after taking a 10-point lead. Despite Manning's two first-half touchdown passes and the late connection with Bishop, the Longhorns could not hold off Oklahoma's second-half rally.

The Red River Rivalry, played annually at the Cotton Bowl during the State Fair of Texas, is one of college football's most storied matchups. Saturday's contest added another dramatic chapter to the series, with Oklahoma overcoming a double-digit deficit to defeat its rival and knock off the No. 1 team in the country.