The Dolphins will lose Joey Porter for the whole pre season and he is doubtful for week #1 after undergoing knee surgery yesterday.  Porter played in 14 games last season for the Steelers and he made 55 tackles, had 7 sacks, 2 interceptions (1 returned for a TD) and he defensed 3 passes.  Donnie Spragan will replace Porter until he returns to the field of play.  Spragan played in all 16 games last season for the Dolphins and he made 50 tackles, had 1.5 sacks, forced 1 fumble and recovered 1 fumble.