Adrian Peterson - Wikipedia
Adrian Peterson remains steadfast in his desire to continue playing: 'I'm looking for a contender'
Minnesota Vikings' Adrian Peterson will be free agent
Adrian Peterson's agent says return to Vikings not in 'best interest' for client – New York Daily News
Minnesota Vikings Won't Exercise Option on Adrian Peterson's Contract - Last Word on Pro Football
NFC North - Guide to the off-season, NFL News
Oklahoma football: Vikings decline option for former Sooners' running back Adrian Peterson, Sports
Vikings' Adrian Peterson wants to return, open to pay cut
Cornerback Patrick Peterson won't return to the Vikings, joins the Steelers
Free Agent RB Adrian Peterson Not 'Officially' Retired