New Seagulls supervisor Sami Hyypia revealed on Friday that Lee, his former colleague at Liverpool, was to sign up for his backroom staff members from Bolton the place he had been operating with the golf equipment academy.
Even so, the fifty five - year - old has now altered his thoughts and determined to transfer to Southampton where he has been provided a work operating under the Leading League clubs new manager Ronald Koeman.
Brighton main govt Paul Barber advised his club's official site : "It is particularly disappointing for the club, Sami Hyypia and those of us who worked tough to deliver him here, that Sammy Lee has now reversed his final decision after agreeing to become assistant manager.
" No person at our club or Bolton Wanderers, was aware of any curiosity from Southampton until finally many hours immediately after we introduced Sammy's appointment as our assistant manager. It can be surely not a predicament any of us have arrive throughout ahead of.
" Getting by now agreed his deal and terms with us to start function on Monday, we could have insisted on Sammy serving a discover period, but we all feel it would have been counterproductive to do so and whilst it really is extremely discouraging for us we want Sammy well.
"Our concentrate now is on doing work with Sami to support him recruit his assistant - whilst also supporting him to provide in the gamers he desires to improve the squad for the new time."
Bolton have also confirmed Lee's departure to Southampton from his part as Head of Academy Coaching at the club.