Aaaaand …. here we go! In many ways, the Vikings' 2013 season officially gets underway Friday – first training camp walkthrough at 10:30 a.m., first practice at 2:45 in Mankato. And yes we know a lot can and will happen between now and Sept. 8, the day the Vikings open the regular season at Detroit. But taking the 90 players currently on the roster, we're delivering our in-depth position-by-position report as a primer for the opening of camp.
RUNNING BACKS
Currently on roster: 8
Likely to make opening day roster: 4
Certain to make the team: Adrian Peterson, Toby Gerhart, Jerome Felton
On the bubble: Matt Asiata
Practice squad candidates: Zach Line, Joe Banyard
Camp depth: Jerodis Williams, Bradley Randle
Biggest offseason developments: It was learned that the abdomen injury that "slowed" Peterson down the stretch of last season was a sports hernia injury, an issue that required the MVP to undergo surgery in February. … The Vikings also re-signed Felton, rewarding him for his Pro Bowl efforts in 2012 with a new three-year deal worth a maximum of $7.5 million.