Mitchell passed his physical Friday and has been removed from the active/non-football injury list, per the NFL's transaction log.

Mitchell has landed on the Patriots' active/NFI list due to an undisclosed injury, Aaron Wilson of KPRC 2 Houston reports.

Mitchell (head) was seen working with the kickoff and punt teams throughout New England's minicamp Tuesday, Andrew Callahan of the Boston Herald reports.

Mitchell (head) will not return to Sunday's game against the Bills, Zack Cox of NESN.com reports.

Mitchell (head) is questionable to return to Sunday's game against Buffalo.