Mitchell (undisclosed) was placed on injured reserve by the 49ers on Thursday, Aaron Wilson of KPRC 2 Houston reports.
The 31-year-old signed with San Francisco this offseason after having stints with Cleveland, Kansas City, Chicago, Dallas, Houston and Tennessee. Mitchell's injury is currently unknown, but the journeyman cornerback will now be forced to miss all of the 2023 campaign unless he works out an injury settlement with the team.