Booker (groin) took part in practice Monday, Kevin Fishbain of The Athletic reports.
The defensive end suffered a groin injury during an Aug. 20 joint practice with the Bengals, didn't practice for the rest of training camp and then was considered "week-to-week," per Brad Biggs of the Chicago Tribune. Booker's return to practice Monday is a step in the right direction ahead of Chicago's season opener against Carolina on Sunday.