Minnesota Vikings rookie running back Alexander Mattison could offer some intriguing value in the late rounds of 2019 fantasy drafts, both for his handcuff status behind the oft-injured Dalvin Cook and for his standalone value in what looks to be a more balanced offense this season. Run-game-guru Gary Kubiak recently said that Mattison has "shown great maturity so far for a rookie" - praise that should not go unnoticed as Mattison looks to establish himself as the clear second option at the po[...]