updated 8:42 p.m. ET Aug. 12, 2008

LOS ANGELES - UCLA quarterback Ben Olson had surgery on Tuesday to place a new screw and do a bone graft in his broken right foot.

Olson, a senior whose career has been interrupted by a string of injuries and had sustained the same injury in spring practice, is expected to miss at least two months and five games.

The Bruins open their season at home against Tennessee on Sept. 1.

Olson re-injured his foot at practice on Saturday when he faked a handoff and took a misstep.

He has started 10 games over the past two seasons and missed 11 games because of various injuries. He had been relegated to the backup role behind Patrick Cowan last spring, but Cowan had surgery after hurting his knee in spring practice and will miss the season.

Junior college transfer Kevin Craft and redshirt freshman Chris Forcier are expected to compete for the starting job in Olson’s absence.

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