No. 12 Oklahoma State beats No. 23 Longhorns 38-13 to hand Mack Brown worst home loss at Texas

Texas receiver Marcus Johnson runs with a reception against Oklahoma State during the second quarter of an NCAA college football game Saturday, Nov. 16, 2013, in Austin, Texas. (AP Photo/Michael Thomas) (The Associated Press)

Texas running back Malcolm Brown (28) scores a touchdown against Oklahoma State safety Daytawion Lowe (8) during the second quarter of an NCAA college football game Saturday, Nov. 16, 2013, in Austin, Texas. (AP Photo/Michael Thomas) (The Associated Press)

AUSTIN, Texas – Clint Chelf ran for two touchdowns and No. 12 Oklahoma State stayed in the Big 12 championship chase by beating No. 23 Texas 38-13 on Saturday.

Chelf also threw two scoring passes as Oklahoma State (9-1, 6-1 Big 12) won in Austin for the third straight time. This one may renew pressure on Texas coach Mack Brown, who was dealt his worst home loss in 16 seasons at a time when speculation about his job security had just begun quieting down.

The Longhorns (7-3, 6-1) ended a six-game winning streak and lost control of their destiny in the Big 12. Chase McCoy threw for 221 yards and was picked off three times.

Oklahoma State next faces undefeated No. 4 Baylor, which was playing later Saturday.