The Bears on Saturday placed defensive lineman Ego Ferguson on injured reserve and signed defensive lineman Bruce Gaston off the Green Bay Packers practice squad.
Ferguson appeared in four games with one start this season, recording nine tackles. The 6-2, 315-pounder was listed as doubtful for Sunday’s game in Detroit with a knee injury after sitting out practice Thursday and Friday.
Selected by the Bears in the second round of the 2014 draft out of LSU, Ferguson played in all 16 games as a reserve as a rookie, registering 27 tackles and two sacks.