SAN DIEGO, DEC. 29 -- Texas A&M's relentless defensive charge inflicted two shoulder separations on Heisman Trophy winner Ty Detmer, and the Aggies overpowered 13th-ranked Brigham Young, 65-14, tonight in the Holiday Bowl.

The BYU defense was overmatched trying to counter the Aggies' rugged option attack.

Quarterback Bucky Richardson figured in four scores for Texas A&M (9-3-1), running for two -- including one when he lined up as a running back -- throwing for one and catching a touchdown pass on an option from tailback Darren Lewis.

Down 30 points at the half, BYU (10-3) opened the third period by driving to the Texas A&M 11. On a third-and-six play, Detmer was hit by linebacker Anthony Williams an instant after throwing a pass.

The BYU quarterback went to the ground hard, separating his right shoulder. He separated the left shoulder on a similar play in the first half. The second injury finished Detmer for the game.

BYU trainer George Curtis said the injuries should heal naturally in three to six weeks. Detmer completed 11 of 23 passes for 120 yards with a touchdown and an interception.

After the game, BYU Coach LaVell Edwards and A&M Coach R.C. Slocum didn't shake hands, but Edwards said it was only because he couldn't find Slocum amid the crowd on the field.

"I wasn't rubbing their noses in anything," said Slocum, who took out a game program and cited lopsided scores in some BYU victories this season. "I have a great deal of respect for how explosive they are. I didn't want there to be any doubts about our not being good enough for this game."