Chesterfield have agreed a deal with Bristol City for midfielder Lee Johnson to join the League One club on an emergency loan.
Johnson will spend the maximum 93 days at the B2net Stadium and could to go straight into the squad to face Exeter on Saturday.
Bristol City have the option to recall the 30-year-old after 28 days.
Former Arsenal youth-team player Johnson has also played for Yeovil and Hearts.
He has made 177 appearances for Bristol City scoring 11 goals.