Switzer has announced his retirement from the NFL via his Twitter account.
Switzer (foot) received a tryout with the Panthers on Tuesday, Field Yates of ESPN reports.
Switzer will undergo foot surgery, Scott Petrak of the Elyria Chronicle-Telegram reports.
Switzer has been placed on the Browns' injured reserve with an undisclosed injury, NFL reporter Aaron Wilson reports.
The Browns signed Switzer to a one-year deal Friday, Field Yates of ESPN reports.
The Browns activated Switzer (undisclosed) from the practice squad/COVID-19 list Wednesday, Nate Ulrich of the Akron Beacon Journal reports.
The Browns placed Switzer on the practice squad COVID-19 list Thursday.
Switzer (undisclosed) was restored to the Browns' practice squad.
The Browns placed Switzer (undisclosed) on practice squad injured reserve.
The Browns signed Switzer to the practice squad Thursday.