The 49ers have signed 27-year old CB Eric Green to a 1-year deal.  Green played in 13 games for the Cardinals last season and he made 32 tackles, defensed 5 passes and had 1 interception.  He has now played in 51 games in his 4-year NFL career and he has made 168 tackles, has defensed 31 passes, forced 2 fumbles and he has 2 interceptions.  This was a good pickup for the Niners as Green knows the division.