Vikings' Justin Skule: Placed in concussion protocol

Skule (concussion) has been ruled out for the rest of Sunday night's contest against the Falcons, Kevin Seifert of ESPN.com reports.

Skule is the second offensive lineman to be placed in concussion protocol Sunday, joining center Ryan Kelly, who was ruled out after halftime. Walter Rouse has taken over at left tackle in place on Skule versus Atlanta.