The Bears have placed WR Johnny Knox and FS Chris Conte on injured reserve, ending the season for both players.
Injuries have forced Arizona to make a series of roster moves on Tuesday afternoon.
Due to injuries in the backfield, the Cardinals have signed RB Alfonso Smith from their practice squad. WR Max Komar was released to create an available roster spot.
A knee injury to Ted Ginn Jr. and the continuing rehab by rookie Kyle Williams have left San Francisco's kick-return unit as problematic as it was last season, according to NFC West Whispers.