Preston's trip to Wycombe Wanderers next month has been postponed due to international duty.
North End were scheduled to play the Chairboys on Saturday, September 3 but the game will now be played at a later date which is yet to be confirmed.
North End have four players called up to represent their countries, including Canada international forward Iain Hume.
Youngsters Seanan Clucas and Conor McLaughlin have been called up to Northern Ireland's U21 outfit, with Adam Barton being summoned to the Republic's U21 squad.
Meanwhile, central defender Daniel Devine is on stand-by for the Republic of Ireland's U21s.