The deal is on undisclosed terms and subject to international clearance but it is thought a loan fee of around £2m was agreed but Brighton will continue to pay £20k of his £45k per week wages. Simply scroll down to see what passionate Seagulls fans had to say about the defender’s move north of the border after four-years service on the south coast... @SpencerVignes: “As a Brighton fan with a major soft spot for Celtic, I couldn't be happier for Shane Duffy. If he was gonna go anywhere, then Celtic Park makes complete sense. He'll become a Hoops hero, mark my words, and I can see that year being extended. Good luck 'big mon'!” @divinelyIOU: “Sad to see you go Shane but you will always be a favourite. Good luck with your season at Celtic. I’m sure you are excited about that!! Hopefully, see you again at the Amex one day. You’ll always be welcome.” @Scalesy1997: “Celtic’s gain is our loss!! No one could get through the Dunk and Duffy Wall !!! @shaneduffy ensured Premiership Football for Brighton. Good Luck Duffers, you’ll be missed.” @JakeMelviIle: “He’s gonna be Maldini in the Scottish league, go smash it Shane.” @eeriesilver: “Good luck Shane, so important for us put first 2 seasons, that partnership with dunk will never be forgotten” @north_seagull: “Goodbye Shane thank you for everything never once let us down – good luck at your dream club” @Ro88o66: “Sad to see you go big man!! Thanks for the memories! Good luck with Celtic they have signed a beast of a centre back!!” @louisehersee: “@CelticFC You're going to RULE the Scottish league! Outstanding player and brilliant character too, always a seagull. Don't be a stranger! @thegilbertros: “All the best Shane. You will be sadly missed at The Amex...especially at set pieces! Go and win that tenth consecutive title with The Bhoys. See you back next season #BHAFC