Adrian Peterson was back on the practice field on Wednesday for the first time in nearly three months, and the Minnesota Vikings hope their star running back can give them the jolt they need to chase down a playoff berth. Wearing a black brace on his right knee, Peterson took handoffs from Sam Bradford, ran routes and went through some agility drills during the portion of practice that was open to media. Coach Mike Zimmer did not rule out Peterson playing against the Indianapolis Colts (6-7) on Sunday, but that appears optimistic at this point. More...