Crawley Town’s trip to Wimbledon is among matches called off in the EFL due to freezing conditions.
Six of the weekend fixtures had been postponed by late Friday afternoon.
A Wimbledon statement explained: “Every effort was made to get this game on by our staff, and volunteers helped to cover the playing surface earlier this week to protect against the elements.
“However, the pitch was today deemed to be unplayable with parts of it still frozen.
“Though temperatures are due to increase by mid-morning on Saturday, conditions are still predicted to be low at this time, so there’s no guarantee that the pitch would be playable by 1.45 pm when it’s needed for pre-match.”
League One matches between Cheltenham and Carlisle, and Port Vale and Wycombe, were both postponed due to frozen pitches.
League Two games at Bradford, Mansfield and Swindon were also called off, with temperatures dropping to minus 7degC in some parts this week.
There are several pitch inspections planned around the Isthmian League on Saturday but none for matches involving Sussex teams.
Matches around the county are likely to be at risk of postponement and supporters are advised to check before setting out to a game.
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