Minnesota Vikings Won't Exercise Option on Adrian Peterson's Contract - Last Word on Pro Football
The irrational avoidance of veteran free agency due to over-valuation of thriftiness, 'building through the draft' and 'homegrown talent' - Hogs Haven
Vikings GM makes it official: Adrian Peterson won't return to Minnesota
Adrian Peterson returns to Vikings
Adrian Peterson rumors: Free agency fits for the ex-Vikings RB - Sports Illustrated
Minnesota Vikings: 5 Big-Name Free Agents Team Could Still Sign
Adrian Peterson remains steadfast in his desire to continue playing: 'I'm looking for a contender'
Watch: Adrian Peterson shows off fleet feet in workout
Adrian Peterson to Be Free Agent as Vikings Decline Option - The New York Times
Adrian Peterson slated to become a free agent after Vikings decline $18 million option