Vikings fans were all up in arms when star running back Adrian Peterson suffered a scary knee injury in what was essentially a meaningless game last season.

Now, however, the fan base seems to be somewhat excited about his rehabilitation progress and the idea of him making back for what very easily could end up being a meaningless season.

Last week, Peterson reached a major milestone when he was able to run on dry land for the first time since suffering the injury.  This keeps him on track with a timeline that would put him in the lineup during week one of the 2012 season.

“Did a great job and everybody was impressed,” Leslie Frazier said on Tuesday. “Our trainer, (Eric) Sugarman, was impressed with his movement and the things he was able to do. He’s on schedule. He’s doing well.”

Fraizer continued to stress, as he has all offseason, the importance of Peterson’s ability to restrain himself and not push the issue and create a situation in which he could do further damage.

“We had that conversation, too,” Frazier said. “He said, ‘How fast should I go?’ We’re just trying to judge movement, and he wants to run a 4.3 40. But he has to let that graft continue to heal. He understands there’s a time frame he’s working within, and so far, so good.”

While the Vikings are sure to be tickled pink if Peterson can set a new standard for rehab and return for the start of the season, it would be completely shocking if they let him run wild right out of the gate.  Even if he makes it back on time, expect to see Peterson on a strict pitch count with Toby Gerhart getting plenty of action.