The 26-year-old has moved to the Blues on a two-year deal.
FootballWatch: Gallen on Pompey signing ThompsonJoe Gallen discusses Pompey-newboy Nathan Thompson.By The NewsroomPublished 22nd Jun 2017, 19:00 BSTUpdated 12th Sep 2017, 11:48 BST Nathan Thompson, left, and Joe Gallen, right. Picture: Colin FarmeryThe 26-year-old has moved to the Blues on a two-year deal.Related topics:Nathan ThompsonPompeyBlues