The Buccaneers have signed 26-year old linebacker Jon Alston.  Alston played in 9 games for the Raiders last season and he made 23 tackles including 2 tackles for a loss.  He has now played in 39 games in his NFL career and he has made 66 tackles, defensed 1 pass and he has forced 2 fumbles.  Alston is a decent backup linebacker and special teams player but there isn’t a lot of upside here.