Kelly (groin) is questionable to return to Saturday's game against the Ravens, Brad Stainbrook of 247Sports.com reports.
The Browns signed Kelly to the 53-man roster Tuesday.
Kelly was cut from the Ravens' practice squad Tuesday.
Kelly reverted to Baltimore's practice squad Monday, per the NFL's transaction log.
The Ravens elevated Kelly from the practice squad to the active roster Saturday.
The Ravens promoted Kelly from the practice squad for Thursday night's Week 1 season opener against the Chiefs.
Kelly signed with the Ravens' practice squad Wednesday, Ryan Mink of the team's official site reports.
The Ravens signed Kelly to a contract Tuesday.
Kelly was elevated from Cleveland's practice squad Friday ahead of Saturday's wild-card round game against the Texans.
The Browns signed Kelly to their practice squad Tuesday.