Coach Jim Harbaugh couldn’t say how long Dobbins might be sidelined or the severity of the injury, which he suffered during the team’s loss to the Ravens on Monday night.

The Raiders announced that O'Connell returned to practice Monday after missing four weeks with a fractured thumb. There's a chance he returns from injured reserve in time for Friday's game against the Kansas City Chiefs, but his status for the game remains unclear. The Raiders could be in the market for a quarterback either way.