Garrett (knee) is working on a side field with trainers at practice Thursday, Sarah Barshop of ESPN.com reports.
Garrett and Puka Nacua (groin) are getting in a star-studded side session Thursday as they work their way back from their respective injuries. Both standout contributors are expected to be available well before the Rams kick off regular-season play Sept. 10 against the 49ers, but Garrett is unlikely to suit up for Saturday's preseason opener against the Chiefs.