Dynasty Summary:

Rotoworld: NR. He excelled at the Thundering Herd's Pro Day, running 4.59 with a 33-inch vertical. Nicknamed "Rockhead" for his bruising, no-frills playing style, Johnson has a future in the league on special teams and perhaps as a short-yardage runner

NFL.com:  Bruising back who was unable to prove to scouts that he could replicate his big 2014 campaign due to a back injury that bothered him for more than half the year. "Rockhead" is a power back who might have enough play speed to fit into a speciality role as goal line back and an immediate special teams contributor. While teams will certainly look at him as a fullback, his value lies in moving the chains and punishing second-level players.