EDEN PRAIRIE, Minn. (AP) - The Minnesota Vikings have ruled quarterback Christian Ponder out for Sunday's game at Baltimore.
Coach Leslie Frazier said Friday that Ponder had yet to pass all of his post-concussion tests. So Ponder will not suit up against the Ravens, with Matt Cassel starting and Josh Freeman backing him up.
This is Ponder's third significant injury of the season. He had a broken rib that paved the way for Cassel to start against Pittsburgh on Sept. 29 and dislocated his shoulder at the end of the third quarter against Washington on Nov. 7.
Ponder took a hit to the head late in the second quarter last week against Chicago.
Running back Adrian Peterson returned to practice Friday after taking the last two days off to rest his sore groin.