The Bears signed center Taylor Boggs, defensive Andre Fluellen and defensive end Kyle Moore to one-year contracts on Tuesday, the team announced.
Fluellen has started six games and played in 56 during his five-year NFL career with Detroit and Miami, logging 52 tackles and 2.5 sacks. Last season, he started one game while splitting time with the Lions and Dolphins and had six tackles.
Moore has 57 tackles, three sacks and two fumble recoveries in 31 games (14 starts) in four seasons with Tampa Bay and Buffalo. He posted a career-best 24 tackles and three sacks in 2012 for the Bills.
Boggs, an undrafted free agent who signed with the New York Jets in 2011, has never played in a regular-season game.