Evans (ribs/Achilles) was working on the side during the open portion of Friday's practice, Nick Wagoner of ESPN.com reports.
In addition to Evans' existing rib injury, the 49ers tacked on Achilles on Thursday, calling Evans a non-participant with head coach Kyle Shanahan terming it soreness, per Wagoner. It's unclear if Evans will do enough Friday to warrant an upgrade to limited, but the team's ensuing practice report will reveal as much.