Just two substitutes were named by the club in their victory over Ashton Athletic in the LFA Challenge Trophy, and Ben Hardcastle has also left the club to join Ashton United.
Murray has spent time with BetVictor Northern Division side Warrington Town, where he played four games under Paul Carden.
Cain has also spent time on loan with Hyde United, who Atherton face this weekend, making 12 appearances.
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