Chesterfield boss Roy McFarland has raided his old club Derby to sign Australian-born defender James Meredith on a month's loan.
The 18-year-old signed a two-year professional deal at Derby last summer.
He has yet to make his competitive first-team debut for the Rams, but made one Conference appearance on loan for Cambridge United earlier this season.
"He is a natural left-footer so brings crucial competition into the squad," McFarland told his club's website.
"He has been training with us and we like what we see."