The 49ers’ cornerback shuffle continues. In addition to placing Richard Sherman on injured reserve with a leg injury, the Niners also announced that fellow corner Ahkello Witherspoon has entered the concussion protocol. To replenish the group, the Niners have promoted Dontae Johnson from the practice squad to the active roster. And, to replace Johnson on the practice squad, they’ve signed former Steelers fifth-round pick Brian Allen. 
[RELATED: 49ers Place Richard Sherman On IR]
Now, the Niners are without their leading outside cornerback and one of their top reserve CBs. Jason Verrett figures to start opposite of Emmanuel Moseley for the time being with K’Waun Williams continuing to serve as the slot man. Beyond that, the Niners will lean on Dontae Johnson as the first corner off the bench and hope that they won’t be hit with any more CB injuries.
In other Niners news, they’ve added veteran receiver Mohamed Sanu on a one-year deal. On the other side of the ball, they’ve decided to pass on Ezekiel Ansah yet again after their second meeting with the defensive lineman.
Having two injured cornerbacks and Jason Verrett not be one of them is one of the most shocking things to happen this season so far.
But also, man it would be cool to see Verrett healthy and excelling.