Reece Brown and Osman Kakay among four Chesterfield loan signings
Chesterfield have signed Birmingham City's England Under-20 midfielder Reece Brown and QPR defender Osman Kakay on loan until 30 April.
The Spireites also added Manchester City striker David Faupala, 19, and Preston midfielder Liam Grimshaw, 21, for the rest of the season.
Brown, 20, has played 21 games for Blues, while full-back Kakay, 19, made one appearance for Rangers this season.
Faupala scored on his City debut, while Grimshaw has played six Preston games.
New Spireites boss Gary Caldwell said Brown was "highly recommended" by former Blues manager Gary Rowett.
"Reece is a very talented footballer who has impressed me when I've watched him," told the club website.