The game was originally called off due to a waterlogged pitch an hour before kick off with most fans already at the ground or in the area. The match was rearranged for 19 March but due to Crawley having one player on international duty they have the right to postpone again.
Apparently Crawley have a Sierre Leone international (who knew?) who has been called up for a friendly match during that week presumably against some highflying country liek Spain or Brazil.
Anyway it is all legitimate under the rules and Crawley are withint heir rights to move the game which will now take place during the last weeke of the season when hopefully the game will be of an irrelevance to Preston in terms of survival.