The Raiders have signed fullback Justin Griffith to a 3 year, $3.8 million dollar contract.  He played in 16 games (11 starts) for the Atlanta Falcons and he carried the ball 19 times for 106 yards (5.6 ypc) with 1 TD run.  He also caught 23 passes for 168 yards (7.3 avg) with 3 TD grabs.  Griffith is a good runner, receiver and blocker.  He will help the Raiders really improve in the running game and short passing game.  Another nice signing by the Raiders.