Adrian Peterson continues to impress in rehab

Vikings RB Adrian Peterson continues to be ahead of schedule in his recovery from last December's torn ACL.  Just 4 months after undergoing surgery, he beat out a handful of teammates in wind sprints this past week.  "He's doing great and we're optimistic that he's going to be ready for that first game," HC Leslie Frazier confirmed. "I know that's his goal and we'll just see how he continues to progress, but he's doing great."  We're starting to buy into the idea of AP being ready for Week 1.  He's been running for about a month now and recently started doing some cutting.  Regardless of how well his rehab goes the rest of the offseason, though, Peterson will be a risky fantasy pick.  It generally takes a RB about a full year to return to pre-injury form after an ACL.