The Bears signed LeBlanc to a contract Thursday, Aaron Wilson of KPRC 2 Houston reports.
LeBlanc was waived by the Bears on Aug. 4, but he's back with Chicago after Freddie Swain (undisclosed) reverted to IR on Wednesday. LeBlanc is a long shot to make the Bears' 53-man roster at the end of training camp, but he has the opportunity to make a case to stick around on the practice squad.