Minnesota Vikings running back Alexander Mattison is slated to take over starting running back duties for Sundays game versus Atlanta due to the adductor injury to Dalvin Cook(groin). DFS sites have already adjusted Mattisons price tag, so unfortunately fantasy managers will have to pony up a pretty penny, but season-long managers can attempt to snag Mattison off of the waiver wire and start him if Cooks sits. With Cooks injury not sounding like a long-term ailment, those managers with waiver ...