OAKLAND, Calif. -- There have been three seasons in Adrian Peterson's illustrious NFL career where the Minnesota Vikings asked him to account for more than one-third of their offensive yards. The first was in 2008: Peterson had 35.6 percent of the Vikings' yards from scrimmage, he won a NFL rushing title and the Vikings went to the playoffs with Gus Frerotte at quarterback and a stout defense.
The second was in 2012: Peterson had a whopping 43 percent of the Vikings' yards, he won a rushing title (as well as league MVP honors) and the Vikings went to the playoffs with Christian Ponder and a serviceable defense.