Cowboys WR James Washington & Longhorns RB Chris Warren III leave with injuries

Texas RB Foreman leaves game with lower-body injury (0:55)

Texas RB D'Onta Foreman has to be helped off the field due to a lower-body injury and does not return to the game against Oklahoma State. (0:55)

STILLWATER, Okla. -- Oklahoma State All-Big 12 wideout James Washington and both of Texas' running backs were knocked out of Saturday's game.

Washington took a shot in the head on Oklahoma State's first drive of the second half, and he had to be helped off the field after lying motionless for several seconds. He had 91 receiving yards and a touchdown before the injury. The school later announced that Washington was being monitored, and he did not return to Cowboys' 49-31 victory.

Texas running back Chris Warren III, who came into the weekend leading the Big 12 in rushing yards per game, suffered a knee injury in the first half that has sidelined him for the game as well. Warren had 106 rushing yards on 10 carries before leaving.

Later in the second, the Longhorns lost their other standout running back, D'Onta Foreman, who pulled up with a non-contact injury. Foreman was jogging on the sidelines, but did not return. He had 146 rushing yards and two touchdowns. A source told ESPN that Foreman's injury is an oblique strain.