The Bengals have signed WR/KR Courtney Roby to a 2-year contract.  Roby played the last two seasons with the Titans and he played in 25 games.  In those 25 games, Roby caught 23 passes for 317 yards (13.8 avg) with 1 TD grab and he also has carried the ball 3 times for 19 yards (6.3 ypc).  Roby has returned 22 kickoffs for 495 yards (22.5 avg) and he will likely take over that role with the Bengals right away.