Sean Covey, BYU's starting quarterback, underwent arthroscopic knee surgery Sunday to check the extent of an injury he incurred during Saturday's win over Hawaii. According to BYU coach LaVell Edwards, the ligaments were found to be undamaged, which means Covey could be ready to play Saturday against New Mexico.

"We'll have to wait and see," said Edwards Sunday night. "He won't practice for a few days. If he's ready to play Saturday, he'll start."If not, Covey will be replaced by freshman Ty Detmer, who completed 5 of 10 passes for 132 yards and one big 71-yard touchdown pass against Hawaii.

Covey was sacked five times in the first half of that game, and the last sack, late in the second quarter, knocked him out of the game. According to Edwards, Covey "probably could have played. He was taped up and ready to go back in. But we didn't want to risk it."

Covey wasn't the only player to emerge from Saturday's game with an injury. Halfback Matt Bellini (sore knees) and cornerback Rodney Rice were in and out of the game with injuries. "I think they'll be all right," says Edwards. "We'll have to wait and see on them, too."

Injuries seem to be catching up with the Cougars. They played Hawaii without starting noseguard Tim Knight because of an ankle injury, and another starter, linebacker Duane Johnson, was relegated to reserve duty because of a neck/shoulder injury. Both players are expected to be ready to play Saturday.

"We've had a couple of physical games in a row," said Edwards. "We're a little banged up, but overall we're in good shape."