Freshman Luke Staley had three touchdowns, and Brigham Young's defense was dominant through three quarters as the No. 25 Cougars beat No. 23 Colorado State, 34-13, tonight.

Kevin Feterik threw for two touchdowns in the Mountain West Conference's first game. One went to Staley, Oregon's high school player of the year last season, who chose BYU (2-0, 1-0 MWC) over the likes of Nebraska, UCLA and Washington so he could play with his older brother, defensive back Dustin Staley.

"I came here because I have a brother who's playing," Luke Staley said. "I've always wanted to play with him, and I've never had that chance. I thought it would be a unique experience."

Staley didn't have glamorous numbers: 14 carries for 65 yards and three catches for 35 yards. But he delivered when asked.

"He doesn't play like a freshman, does he?" Feterik said. "He's our starting halfback, and he's a big part of our game plan. Once we get up 21 or 24 points, we'll always want to milk the clock."

The Cougars showed Colorado State (2-1, 0-1) what it feels like on the losing end of a blowout. The Rams, unranked in the preseason, broke into the top 25 after a 41-14 victory over then-No. 14 Colorado.

Colorado State didn't have Kevin McDougal, who rushed for 190 yards against the Buffaloes and 147 before a hamstring injury forced him out of last week's victory over Nevada.

It probably wouldn't have made a difference against BYU's fierce defense. The Rams had 129 yards, including just 15 rushing, through three quarters before scoring two meaningless touchdowns in the fourth quarter.