UCLA center Josh Smith sidelined

Jan. 5, 2012 8:22 PM PT

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UCLA’s 6-foot-10 sophomore center Josh Smith did not start and will not play in Thursday’s Pac-12 Conference matchup against Arizona.

Just before tipoff, a UCLA spokesman said Smith suffered a concussion late in practice Wednesday.

The Bruins are trying to avoid their first 0-3 start in conference play since the 1987-88 season.

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Coach Ben Howland sees tough matchup in Arizona

-- Diane Pucin