RB Adrian Peterson is ahead of schedule in his rehab, a...

RB Adrian Peterson is ahead of schedule in his rehab, and he's already been racing some of his teammates at the Vikings' practice facility.

"I got to run against Adrian and he's looking good," said WR Jerome Simpson, who beat Peterson in the race. "It was neck-and-neck there. We're always talking a little trash back and forth to each other, but it was a great competition."

Peterson beat a few of his other teammates, an impressive feat given that he is only about six months removed from major knee surgery. He beat Harvin in their runs up a steep hill twice on Wednesday, as well.

"He's amazing. I told him the other day I don't think he's human," WR Percy Harvin said. "Two weeks ago he beat a couple guys in a race. When I got here yesterday, I told them guys they should be embarrassed."

Peterson is going to have to be super human to pull off a full recovery in time for Week 1, but it sure sounds like he's well ahead of schedule with his rehab.