Adrian Peterson vs. Todd Gurley: Whose rookie season is better?

MINNEAPOLIS -- Perhaps the most popular Internet meme of the last month was "Back to the Future Day" on Oct. 21 -- the day depicted in the flick "Back to the Future 2" when Marty McFly travels 30 years into the future to bail his son out of trouble while trying to avoid running into his future self. On Sunday, Adrian Peterson might have his own version of it.

The 6-foot-2, 217-pound running back -- born in 1985; offensive rookie of the year and rushing title runner-up in 2007; and league MVP and ACL recovery success story in 2012 -- will be across the field from a 6-foot-1, 226-pound running back who has condensed Peterson's timetable, squeezing a comeback from knee surgery and a…