Albion are seeking compensation from arch rivals Crystal Palace for a promising schoolboy goalkeeper.
Lance Cronin wants to sign for Palace after six years with Albion's centre of excellence.
Chief executive Martin Perry revealed: "We are in talks with Crystal Palace about a structured deal, but it isn't settled yet.
"It all depends how far he goes in his career. If he goes all the way to international level it would be a significant sum."
Cronin, a 14-year-old pupil at Portslade Community College, said: "My contract with Albion ended in May and I was offered a five-year deal, including three on scholarship.
"Although after six years it's a wrench I haven't been happy. I've decided to leave for personal reasons, including the fact I was only getting half a game and wanted to play more."
Cronin, 6ft 1ins and 13st, has also interested Manchester United, Southampton, Aston Villa and Fulham. He was put forward by Albion for England under-15's.
Director of youth Martin Hinshelwood said: "We recommended him to England. We looked after him, but he is a free agent and has decided to look elsewhere, so we wish him luck."
Cronin's case is similar to that of Gareth Barry. Albion won more than £1 million compensation for Barry after he left the centre of excellence to sign for Villa.
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