NORMAN, Okla. (AP) — A year ago, Oklahoma defensive coordinator Mike Stoops brought a shaky defense into the rivalry game with Texas.

He was fired the day after a 48-45 loss to the Longhorns.

This year, things appear to have changed under new defensive coordinator Alex Grinch. The Sooners are allowing just 19 points per game and have held their past four opponents to 20 or fewer points, and a swagger has developed with the success.

Texas coach Tom Herman knows he will see something much different on Saturday when No. 6 Oklahoma and No 11 Texas meet in Dallas.

"I think you just see them playing...