The Steelers began training camp with tight end David Johnson having a significance presence, particularly as the lead blocker in the run game. But Johnson’s season-ending knee injury forced offensive coordinator Todd Haley to call an audible.The Steelers decided a fullback — free agent Will Johnson — could best fill the role of blocking back. However, Johnson has become a reliable H-back, doubling as a lead blocker and tight end.


Read more: http://triblive.com/sports/steelers/...#ixzz27CdnfbJC