Bears sign former Illinois DE Walker

The Chicago Bears signed former Illinois defensive end Derek Walker and waived tackle Tyler Henderson on Tuesday.

The 6-foot-4, 270-pound Walker played four games with the Chicago Rush last season, recording two sacks and an interception. Undrafted out of Illinois in 2009, Walker entered the NFL with the Seattle Seahawks.

Hendrickson was an undrafted rookie out of Concordia (Minn.).