49ers signed WR Chad Hall from the practice squad.
Hall takes the roster spot of released kicker Billy Cundiff. Hall is a diminutive 5-foot-8 and 187 pounds but has the ability to line up in the slot or in the backfield. He's unlikely to see many, if any, offensive snaps, though. We wouldn't read into this as an indication of Michael Crabtree's game-day status.