RBs Fantasy Football: RB rankings for 2015 By Ryan Skolrud, CEO and Founder, SkullKing Sports Posted on May 13, 2015 Share Tweet Share Share Email Comments ESPN staff fantasy football RB rankings for the 2015 season. Source: Fantasy Football: RB rankings for 2015 Related Related Items:2015, Player Rankings, RBs Share Tweet Share Share Email Recommended for you No Gurley, No Problem: Cam Akers is the Future Three RBs to Be Cautious With Week 12 – Tom Kovack Two Top 20 RBs That Could Struggle Week 11 – Patrick Fisse