It causes a problem for Graham Potter as he will now have to prepare for another fixture this month. The date is set to be Tuesday, January 18, kick-off 8pm, and it will be broadcast live on BT Sport.
Last month Brighton secured a 1-1 draw against Chelsea at Stamford Bridge thanks to a late header from Danny Welbeck.
Brighton are in action this weekend at West Brom in the FA Cup third round and then face Crystal Palace on Friday January 14 at the Amex. The Chelsea game will now follow on the 18th quickly followed by a trip to Leicester on January 23.
Albion then stop for the international break and resume at Watford on February 12.
There could be further complications in January however as a move by Fifa could see Albion face rearranged Premier League matches against Manchester United and Tottenham Hotspur in the coming weeks.
Albion's Premier League match against Spurs was due to be played on December 10 but was postponed due to a covid outbreak at the London club.
Eight days later Brighton also saw their Premier League fixture at Manchester United called-off due to positive cases at United.
Fifa have now earmarked that time slot between Leicester and Watford as a potential chance for the Premier League to reschedule matches postponed due to Covid-19.
Ticket information for the Chelsea fixture will be announced shortly.