49ers promoted OLB Cam Johnson from the practice squad.
49ers seventh-round OLB Cam Johnson (knee surgery) returned to practice on Tuesday.
49ers OLB Cam Johnson is recovering from a "procedure" on his knee.
49ers signed No. 237 overall pick DE Cam Johnson to a four-year contract.
49ers selected Virginia DE Cam Johnson with the No. 237 overall pick in the 2012 NFL draft.