Source: Darin Gantt, NBC Sports Pro Football Talk 
While a full-blown media circus is about to break out at Dolphins camp over the Jonathan Martin-Richie Incognito bullying story, they took the opportunity to sneak in a roster move before practice.
The team announced they had signed wide receiver Marlon Moore, who was just released by the 49ers. To make room for him on the roster, they waived wide receiver Ryan Spadola.
Joe Philbin to address media after practice. Before practice, team makes roster moves: signs WR Marlon Moore & waives WR Ryan Spadola.
— Miami Dolphins (@MiamiDolphins) November 4, 2013