Posted by ESPN.com's Ted Miller
Best dislocated his elbow against Colorado State but the extent of his injury won't be known until he has an MRI this morning. Cal has a bye after the Sun Devils come to town and visit Arizona on Oct. 18, the earliest date Best could return.
Also on the injury list: hard-luck defensive end Rulon Davis, who suffered a leg injury that will sideline him six weeks, and guard Chris Guarnero, who's out for the year with a toe injury.
Davis missed half of the 2006 and 2007 seasons due to injuries.
The Bears' offensive line is already missing tackle Mike Tepper, who's been slow to recover from a pectoral injury.