The Green Bay Packers will be a bit shorthanded when they travel to Minnesota to take on the division rival Vikings on Sunday. Green Bay's top corner, Sam Shields, has been ruled out for the game with a concussion.

Shields suffered the concussion while tackling Jaguars running back T.J. Yeldon during Green Bay's win over the Jaguars in Week 1. According to, it is the fifth known concussion Shields has sustained during his NFL career.

The concussion he sustained against the Cowboys last season kept him out for more than a month.

"Any time any of our players is in the protocol and dealing with a concussion, it's a concern," Packers coach Mike McCarthy said. "That's why we'll evaluate Sam each and every day, and most importantly to make sure he's healthy and goes through the challenges of what he's dealing with. We definitely are aware of his history, and that will factor in on how we move forward."

With Shields out, the Packers will be counting on a group of young cornerbacks in Damarious Randall, Quentin Rollins, and LaDarius Gunter to hold down the fort against the Vikings' passing attack. Rollins and Gunter were picked on by Blake Bortles last week, yielding seven catches for 153 yards and a touchdown on nine targets between them.

Minnesota doesn't quite have the volume or quality of receiving threats the Jaguars can trot out on the field (and Sam Bradford does not have as good a downfield arm as Bortles), so it may be easier for the group on the outside to hold up on Sunday.