Nacua (groin) is practicing Sunday, Sarah Barshop of ESPN.com reports.
Nacua made an early exit from the Rams' joint practice with the Cowboys on Aug. 11 and eventually was diagnosed with psoas soreness. Now almost three weeks removed from the initial injury, he's taking a step in the right direction by returning to drills. Los Angeles opens the season Thursday, Sept. 10 against the 49ers in Melbourne, Australia, a contest for which the team likely is aiming for him to be available.