Joseph Addai's one-year deal with the Patriots contains a non-guaranteed base salary of $725,000 and a roster bonus of $218,750. In other words, Addai will have to earn his roster spot in training camp and preseason action. While he does receive a $75,000 signing bonus and a $50,000 workout bonus, the Pats are unlikely to pick up that roster bonus in September if he doesn't prove to be a more reliable option than Stevan Ridley and Shane Vereen.