SANTA CLARA, Calif. -- Blake Costanzo is reuniting with several key figures from his NFL career.The special team ace re-signed with the San Francisco 49ers on Tuesday. He was a star on special teams for the franchise in 2011. Not only is he back with several coaches and teammates from his first go around with the 49ers, but he is back with other people who he is close with. Fellow special teams ace Bubba Ventrone and Costanzo are close friends from their days with the Jets in 2006.