Vikings defensive end Jared Allen offered a less skeptical view but echoed his teammate's encouragement of the testing.
"You like to think that everybody is playing clean and that we have a pretty solid drug testing system now with steroids, being random like it is, that it would discourage that kind of use," Allen said. "I'm not naïve to say that. There are probably people on them. But hopefully if they can figure it out and get the system worked out, then it would discourage anyone using performance-enhancing drugs."
Peterson's seemingly superhuman comeback last season prompted plenty of accusations he heard in person or saw online. There's even a Twitter user with the handle @HghPeterson. Peterson is aware of it.
"I think that's a compliment, when I hear people say stuff like that," Peterson said. "It shows me how blessed I am."
Given the state of pro sports, particularly in light of the recent resurgence of big-name baseball players linked to performance-enhancing drugs, even a live-televised blood test of Peterson's sample would still leave people assuming he somehow cheated to aid his remarkable 2012 season. But he said he's not worried about such disbelief.
"Because I'm true to myself, and I know I have a lot of respect for this game and the guys that came before me and the guys that did it the right way, and that's what I'm all about," Peterson said.
Of the six other players who topped the 2,000-yard mark (Eric Dickerson, Jamal Lewis, Barry Sanders, Terrell Davis, Chris Johnson and O.J. Simpson) previously, the best follow-up performance was 1,491 yards by Sanders in 1998. Some statistical regression is only natural, especially if quarterback Christian Ponder can improve with two new wide receivers, Greg Jennings and Cordarrelle Patterson, to throw to.