Reggie Bush, Daniel Thomas and Lex Hilliard. It's possible that the Dolphins grew even more concerned with the pass protection and inside running of Daniel Thomas, forcing them to reconsider. We still don't think Johnson, 31, has enough gas in the tank to be effective if called upon this season. But the Dolphins are strangely guaranteeing his contract for the duration of the season by signing him prior to Week 1.
Source: Jason La Canfora on Twitter