Johnson (neck) did not participate in Wednesday's practice, Anthony Galaviz of The Fresno Bee reports.
Dupree (neck) is off the Chargers' injury report ahead of the team's matchup versus the Rams on Sunday.
Head coach Jim Harbaugh said Wednesday that Perryman (undisclosed) is "close" to returning from injured reserve, Alex Insdorf of BoltBeat.com reports.
Leonard (concussion) did not participate in Wednesday's practice, Alex Insdorf of BoltBeat.com reports.
Thomas (shoulder) was a limited participant in Wednesday's practice, Anthony Galaviz of The Fresno Bee reports.
Thompson (quadriceps/hamstring) did not participate at practice Wednesday.
Alt (neck) was not listed on the Chargers' official injury report Wednesday.
James (hamstring) suffered a setback in his recovery and will likely miss Sunday's game against the Rams, Eric Smith of the Chargers' official site reports.
Harris (hamstring) was a limited participant in Wednesday's practice.
McConkey (concussion) was a full participant in Wednesday's practice.
