The Cardinals have signed 33-year old DE Bryan Robinson.  Robinson played in 16 games for the Bengals last season and he made 20 tackles, defensed 2 passes, had 1.5 sacks and forced 1 fumble.  Robinson has now played in 158 games in his NFL career and he has made 354 tackles, defensed 35 passes, has 22 sacks and he has forced 7 fumbles.  Robinson will likely be a backup for the Cardinals in 2008.