Moises Caicedo with was absent from Brighton training today as he tries to force through his move to Chelsea.
Chief executive Paul Barber, however, had earlier stressed the club expect him to be available for their Premier League opener at home to Luton Town on Saturday.
Caicedo, who joined Brighton from Beerschot in 2022 for £4.5m, was not involved in their friendly on Sunday against Rayo Vallecano.
It comes as Brighton and Chelsea have been locked in a stalemate, with the Seagulls last week rebuffing an £80million offer from the Blues to sign the Ecuadorian, but it appears they are set to step up their attempts to sign him once again.