Oklahoma Defense Faces A Brutal Test After Recent Turnaround

The Sooners must tighten their defense and maintain discipline to overcome the threat of Ole Miss' Trinidad Chambliss and avoid a repeat of last year's defeat.

Oklahoma’s defense has been sturdy for much of 2026, but the Sooners know exactly where the stress point is heading into Saturday: finishing tackles against Ole Miss quarterback Trinidad Chambliss.

Through nine games, Oklahoma has missed 116 tackles, according to Pro Football Focus. Cody Nagel of 247Sports reported the Sooners’ missed tackle percentage at 18.2 percent, which ranks 134th out of 138 FBS teams. That kind of slippage is a dangerous problem against a quarterback who can hurt a defense in more than one way.

“It takes everybody,” OU coach Brent Venables said. “The discipline in our rush lanes, how we execute every call with great detail and purposefulness. Everyone needs to understand the ‘why’ of why we’re doing, how we’re doing it, situational football.”

Ole Miss already showed Oklahoma what that challenge can look like. Last year, the Rebels beat the Sooners 34-26 in Norman, handing OU one of its three losses, and Chambliss was a major reason why. He threw for 315 yards and a touchdown while also rushing for 53 yards and averaging 4.4 yards per carry.

Oklahoma missed 18 tackles in that game, and several of them came when Chambliss broke free from the pocket.

This season, Chambliss has piled up 2,359 passing yards with 18 touchdowns and nine interceptions. He has also added 187 rushing yards and seven scores on the ground, giving Ole Miss the kind of dual-threat threat that can force a defense to stay honest snap after snap.

“They do a good job schematically of creating a lot of stress for you,” Venables said. “If you’re going to have any opportunity to play well against a player of his caliber, it really is going to take all 11 that are on the field, understanding why it’s important for them to do their job at the level we need them to.”

The Sooners are also aware that Chambliss has had some ball-security issues lately. He has thrown five interceptions over his last three games, including three in the Rebels’ loss to Texas. Against Georgia last week, he forced a throw when he should have taken the safe option and ended up with a costly interception.

OU linebacker Owen Heinecke said Chambliss’ versatility makes him tough to defend, but he believes the Sooners can clean up the mistakes that hurt them a year ago.

“He extended a lot of plays that felt like we should have been off the field on,” Heinecke said. “He’s the key - the whole offense runs through him. We gotta bottle him up, make him throw the ball down, check down, and we’ll do a really good job of that.”

Oklahoma’s most troubling defensive outing this season came on Oct. 31 in a 42-25 loss to South Carolina, when the Sooners missed 25 tackles and gave up more than 500 yards. But they answered with a much sharper performance last week, holding Florida to 203 offensive yards in a 23-7 win and missing just 12 tackles.

Venables said that effort showed the kind of edge Oklahoma will need again.

“I thought our guys played with a great edge, a good chip on their shoulder,” Venables said. “I thought they came out swinging right away, played with great energy and played from a place of desperation, and so you know that's what it's going to take for us (against Ole Miss).”

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