Johnson promoted to active roster

The 49ers promoted RB Kerryon Johnson from the practice squad to the active roster. He's now eligible to play against the Packers on Sunday night. Johnson joined the team 2 weeks ago. We'll see how big a role he plays in Week 3 -- if he plays at all. But he shouldn't be in fantasy lineups. San Francisco placed RB JaMycal Hasty (ankle) on IR in a corresponding roster move.