Dawson was originally signed as an undrafted rookie free agent out of Angelo State following the 2002 NFL Draft, was released Sept. 1 and signed to the practice squad Sept. 3. The 6-6, 280 pounder was released Oct. 15 and this will be his second stint on the Bears practice squad.
Littleton was signed Oct. 16 and filled in for injured long snapper Patrick Mannelly for two games, handling snaps on field goals, extra points and punts against Detroit and Minnesota.
