"The good news is my neck injury doesn't require surgery, but I'm told by Dr. Robert Watkins that the best thing for me is just more rest than the length of this season," Peterson's statement read. "Obviously, I'm disappointed about going on IR when my body is still able to produce, but I look forward to returning completely healthy for another season in 2018. I'm grateful for the opportunity that the Arizona Cardinals have given me to show that I can still contribute to a an NFL team."
Peterson's season is over a day after coach Bruce Arians said he wasn't sure whether Peterson would return from the injury he suffered on Nov. 26 against the Jacksonville Jaguars. Arians said Wednesday that there had been no improvement in the condition of Peterson, who had missed the team's past two games.
Injuries have been a recurring theme in Peterson's career. He missed 11 games last season because of a torn meniscus and also sat out games in 2013, 2011, 2010 and 2007 because of injuries.
Peterson played four games with the New Orleans Saints to open the season and appeared in six more with Arizona. He ends the season with 529 yards rushing and two touchdowns on 156 carries. He also caught 11 passes for 70 yards.