The Bears agreed to terms with 12 undrafted free agents Sunday.
Topping the list was Bowling Green wide receiver Freddie Barnes, a Chicago native who graduated from Homewood-Flossmoor in 2005. Last season, Barnes set an NCAA single-season record, hauling in 155 receptions, while leading the nation with 19 receiving touchdowns.
The Bears also added Big Ten prospects in wide receiver Greg Matthews and running back Brandon Minor from Michigan, Indiana linebacker Matt Mayberry and Ohio State defensive end Lawrence Wilson.
Matthews caught a pass in 23 straight games at Michigan, starting 11 of 12 games as a senior, catching 29 passes for 352 yards and one TD.
Minor led the Wolverines in rushing last season with 502 yards and eight touchdowns on 96 carries.
Mayberry, another Chicago native from Hinsdale South High School, started the final 24 games of his Indiana career at middle linebacker, leading the Hoosiers with 108 tackles as a senior.
The other undrafted free agents who agreed to terms with the Bears are UTEP cornerback Cornelius Brown, Montana offensive tackle Levi Horn, Nicholls State wide receiver Antonio Robinson, Texas A&M-Kingsville defensive tackle Jimmy Saddler-McQueen, Northern Iowa safety Quentin Scott, Nebraska defensive end Barry Turner, and Colorado State center Tim Walter.