The school announced that arthroscopic surgery on Olson's knee
Tuesday showed he didn't have torn cartilage.
The Bruins (4-2, 3-0 Pac-10) are off this week. Their next game
is Oct. 20 against No. 2 California (5-0, 2-0) at the Rose Bowl.
Patrick Cowan, Olson's backup, is also sidelined due to a
partial tear of the medial collateral ligament in his right knee.
It's uncertain whether Cowan will be able to play against Cal.
Walk-on McLeod Bethel-Thompson played most of the way at
quarterback in UCLA's 20-6 loss to Notre Dame last weekend, but was
ineffective, completing 12 of 28 passes for 139 yards with four
interceptions. He replaced Olson in the first quarter.
Osaar Rasshan, who spent two years practicing at quarterback but
moved to wide receiver over the summer, has returned to his
original position. Freshman quarterback Chris Forcier hasn't played
this season and was expected to redshirt, but it's possible those
plans will change.
UCLA linebacker Reggie Carter had arthroscopic surgery to remove
a piece of cartilage removed from his right knee Tuesday, the
school said. He might be able to play against Cal.