MINNESOTA VIKINGS (14-4) OPEN CAMP: July 25 (rookies), July 28 (veterans), Twin Cities Orthopedics Performance Center, Eagan, Minnesota LAST YEAR: Despite losing starting QB Sam Bradford after season opener and rookie RB Dalvin Cook in fourth game, both to knee injuries, Vikings rode backup QB Case Keenum and league-leading defense to second-most wins in franchise history.Read more on NewsOK.com