The Rams elevated Kendricks from the practice squad to the active roster Saturday.
Raymond did not catch either of his two targets and returned one punt for seven yards Thursday in a 30-24 win over New England.
Roush is expected to get more work on offense after Cole Kmet (knee) landed on injured reserve Friday.
Johnson rushed twice for 13 yards in the Bears' 30-24 victory over the Patriots on Thursday.
Whittington could operate in an expanded role offensively if Puka Nacua (calf, questionable) cannot play against the Raiders on Sunday.
The NFL reinstated Sweat after he served a two-game suspension for violating the league's performance-enhancing substances policy.
Mumpfield could get a significant bump in opportunity Sunday in Week 7 against Las Vegas since Davante Adams (hamstring) is on IR and Puka Nacua (calf) is questionable to play, Stu Jackson of the Rams' official site reports.
Landman (concussion) has been ruled out for Sunday's game against the Raiders, Gary Klein of the Los Angeles Times reports.
McDuffie (groin) is listed as questionable for Sunday's game against the Raiders, Sarah Barshop of ESPN.com reports.
The Bears placed Kmet (knee) on injured reserve Friday.
