Jay Cutler suffered a concussion in the first half on Sunday night's game against the Texans. He did not return after he was examined in the locker room at halftime, leaving Jason Campbell to take over at quarterback for the Bears.
Campbell completed 11 of 19 passes for 94 yards in his playing time in Week 10.
Fantasy Impact: The seems to be some mystery surrounding how many concussions Cutler has suffered over his football career, but obviously injuries have plagued him in the past. If he can't pass concussion tests this week, Campbell will be back under center against the Niners.
Chicago does play on Monday night in Week 11, so Cutler has an extra day at least. Campbell won't provide much value for your lineup, though.