Minnesota Vikings wide receiver Greg Childs was clutching his right knee when he was carted off the field toward the end of Saturday's training camp scrimmage. Fox Sports North reports the rookie went up to catch a pass and screamed in pain as he hit the ground.

Adrian Peterson tells Fox Sports North he’s in “severe” pain from his knee injury suffered in Saturday’s game against the Redskins. It’s so bad, he’s moved up his surgery to fix it from next Tuesday to tomorrow.

Jeremy Fowler of the Pioneer Press spent a week with Vikings rookie wide receivers Jarius Wright and Greg Childs. The two grew up together, played football together and now their in the NFL together. It's an amazing story worth a read.

Leslie Frazier will be making sure all-pro defensive end Jared Allen isn't overused this season. "We're going to make a concerted effort to try to get him off the field at times," Allen played 90 percent of the team's snaps last season. Meanwhile, Greg Childs and Chris Cook were the standouts of Thursday's practice.

While many teams around the NFL are beginning Organized Team Activities this week, the Vikings won't start until May 30. Wide receiver Michael Jenkins plans on attending the workouts, and he's fully healthy after offseason knee surgery.

All-Pro Adrian Peterson is resting comfortably after knee surgery to repair torn anterior cruciate and medial collateral ligaments, Vikings coach Leslie Frazier said in a statement. Peterson was closing in on his fifth-straight 1,000 yard rushing season before the injury.