Colorado Defense Stifles Oklahoma : Big Eight: Sooner quarterback Gundy suffers concussion during fourth quarter of 27-10 setback.

Colorado’s high-octane offense figured to need some help from the defense Saturday to beat No. 9 Oklahoma. The Buffaloes got it.

No. 20 Colorado held Oklahoma to 92 yards rushing and outgained the Sooners by more than 200 yards to win, 27-10. The Buffaloes are the first Big Eight team to win three consecutive times in Norman since Nebraska did it in 1932, ’34 and ’36.

“I thought we won the front on both sides of the ball and that’s why we won the game,” Colorado Coach Bill McCartney said. “Our defense has taken a lot of shots, but that was a good defense out there today.”

Colorado, 4-2 overall and 2-0 in the Big Eight, knocked quarterback Cale Gundy out of the game early in the fourth quarter after he had scrambled for 28 yards. His run moved the ball near midfield with the score 20-10, but the offense went nowhere without him and the Buffaloes sealed the victory with a late touchdown.

“Once he went down, our hopes basically went down with him,” said Coach Gary Gibbs, whose team dropped to 5-1 and 1-1.

Gundy suffered a concussion and was taken to a hospital, although Gibbs said doctors told him the quarterback should be all right.

Colorado receiver Charles Johnson, who scored on touchdown plays of 64 and 34 yards in the first half, broke the ring finger on his left hand on the series before Gundy was hurt. McCartney called it a “significant injury,” although Johnson returned late in the game.

“They were the most dominant team on both sides of the ball,” Gibbs said. “Their ability to run and break tackles, their ability offensively to make big plays certainly was the main ingredient.”

Lamont Warren showed why he is the Big Eight’s leading rusher, carrying 34 times for 182 yards and helping the Buffaloes keep possession for more than 36 minutes. Colorado, with the nation’s fourth-rated offense, ran for 314 yards against a defense that had given up an average of 140 per game on the ground.

“We have all the tools to run,” Warren said. “The offensive line, you have to give them credit. They responded to that challenge.”