4. Adrian Peterson, RB, Vikings
It remains a mystery where Peterson will play this season. He remains a member of the Vikings, though all indications from the running back suggest that’s not where he wants to suit up Week 1.
At 30 years old coming off a one-game campaign in 2014, there inevitably are questions as to whether Peterson is still the Peterson who has dominated the NFL the past eight years. He’s only three years removed from a 2,000-plus-yard season, but three years could be a lifetime when it comes to NFL running backs.
With all off the commotion being stirred up by Peterson and the Vikings, he faces a major “prove it” type of season wherever he plays in 2015. Otherwise, a team that deals for him could be making a major bust type of deal, likely having to part ways with multiple draft picks and opening its wallet big time to bring him in to make a run.