Chesterfield climbed up to fifth in the League One table on Tuesday night after recording a 3-0 home win over Crawley.
Chesterfield have completed a deal to sign striker Byron Harrison from Cheltenham for an undisclosed fee.
Armand Gnanduillet hopes to maintain his extended run in the Chesterfield team and help spearhead the Spireites' play-off challenge.
On-loan striker Darren Bent was on target as Derby beat Chesterfield 2-0 in the FA Cup fourth round at the iPro Stadium.
Steve McClaren admitted he was relieved his game of risk paid off after Derby beat Chesterfield in the FA Cup.
Chesterfield have been dealt a blow with the news that Gary Roberts will be out for around six weeks with a hamstring injury.
Chesterfield have confirmed that Romy Boco has left the club to play for Indian I-League side Bharat FC.
Chesterfield are waiting to discover the extent of the hamstring injury Gary Roberts sustained at the weekend.
Live only on
More of the games that matter on Sky Sports
Listen to the latest Transfer News
All the gossip from the morning editions
Predict six scores to win the £250,000 jackpot!
Pick your Sky Sports Fantasy Football team