Burden (groin) returned to practice Wednesday, but he was contained to individual drills, Courtney Cronin of ESPN.com reports.
Since exiting practice Aug. 8 due to a groin injury, Burden was given a prognosis of roughly one month, meaning preseason action was off the table. However, his ability to mix back into some drills Wednesday generally is a positive sign in his recovery. The Bears open the regular season Sunday, Sept. 13 at Carolina, a contest for which Burden will continue to ramp up for.