Chesterfield have signed young Birmingham City midfielder Reece Brown on loan.
Brown, 20, has made 16 appearances for the Championship club, including nine this season.
His last appearance came as a substitute against Newcastle in the FA Cup earlier this month.
The England U20 international will remain at the Proact until April 30.
Manager Gary Caldwell said: “Reece is a very talented footballer who has impressed me when I’ve watched him and he also comes highly recommended by Gary Rowett.”