By JOHN HOLLER
The biggest offseason question lingering around the Vikings is the health of Adrian Peterson. The NFL's preeminent running back through his first five seasons, Peterson suffered a torn ACL and MCL against the Washington Redskins in December and put his future in doubt.
Peterson is looking to reverse history, but, unfortunately, the numbers don't point to a return to pre-injury glory. If anyone can make a full recovery less than one year removed from the surgery, it's Peterson. He is pushing himself hard to be ready for the Vikings' regular-season opener Sept. 9 but said he isn't going to push himself so hard that he has a setback in his progress.
"It's about long-term and I understand that," Peterson said in a recent interview with ESPN. "Ultimately, I'm going to be smart and do what's best for me. I know my body and I know once that Week 1 comes of the regular season, I'm going to be able to go out and perform the way I need to. I know I'll be abl...