Fantasy Football: Adrian Peterson, Jonathan Stewart are best RBs for Week 15SI lead fantasy writer Michael Beller looks at the top five running backs to use during Week 15.SI Staff|Share on FacebookShare on XAdd us as a preferred sourceSI lead fantasy writer Michael Beller looks at the top five running backs to use during Week 15.Add us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Dec 15, 2015 | Modified Dec 15, 2015SI STAFFShare on FacebookShare on XHome/FANTASY