Albion will have to re-arrange their trip to Nottingham Forest on Saturday week.
The match clashes with the October 12 European Championship qualifiers which involve two Forest players.
Keeper Darren Ward has been named in the Wales squad while Gareth Williams is in the Scotland squad.
Forest's Chris Doig has also been included in the Scotland Under-21s squad.
The Seagulls are sending a side to Hassocks on October 15 (7.30pm) for a friendly to mark the opening of a new stand at The Beacon.
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