Richard Brehaut has sprained left foot

UCLA quarterback Richard Brehaut sat out of practice Tuesday with a sprained left foot and isn't sure exactly how long he'll be out, he said.

Brehaut, a junior who started seven games for the Bruins last season, had X-rays on the foot, but they were negative and he said he is "day to day."

"I'm a little disappointed that I can't be out there but I don't think this injury will be around for very long at all," he said.

Brehaut completed 119 of 212 passes for 1,296 yards, six touchdowns and seven interceptions last season and came into fall camp in a battle with Kevin Prince for the starting job. He was the underdog at the start of camp, but has played well the past three days in live situations to even the competition. Still, the injury could hamper his chances, especially if he is unable to play in the fall scrimmage Saturday.

"I don't know what his availability will be for the scrimmage," coach Rick Neuheisel said. "If he's not well, we won't play him in the scrimmage but our hope is and I know his hope is to be back and available for that."

Brehaut said he twisted his foot awkwardly twice during practice on Monday afternoon, once during an early drill and once during live team periods near the end of practice, but said he was surprised at how serious the injury turned out to be.

"It was nothing that hindered my play, really," he said. "I finished practice and I thought it was going to be fine. Walking off the field yesterday, I didn't expect to miss practice, but once I took my ankle brace off and took my cleat off, that's when it really started hurting."

Brehaut seemed optimistic that he would be able to return in time for Saturday's scrimmage and said he didn't think missing a couple of days would be too much of a setback in the quarterback competition.

"I'm still in the meetings, I'm still getting all the mental reps," he said. "I'm still throwing on the side making sure my arm doesn't lose any of the accuracy or lose anything like that."

Peter Yoon covers UCLA for ESPNLosAngeles.com.