The 6-foot-3, 315-pound Ferguson had 58 tackles in his lone season as a starter last year and is considered raw after leaving school a year early. He was suspended from the Outback Bowl against Iowa for violating team rules and did not work out at the NFL combine because of a right ankle injury he suffered in the days leading up to it.
In addition to Ferguson, the Bears announced Tuesday they agreed to four-year deals with fourth-round draft pick Ka'Deem Carey (running back, Arizona), sixth-rounder Patrick O'Donnell (punter, Miami, Fla.) and seventh-rounder Charles Leno Jr. (offensive tackle,Titans Jerseys Cheap, Boise State).