League One side Swindon Town sign former Watford and Oxford striker Jamie Calvin on a one-year contract.
Chesterfield boss Dean Saunders will make changes against Swindon as he looks to halt a three-game losing run.
Walsall are likely to be unchanged for the League One clash with Bradford despite a 2-1 defeat at Swindon in midweek.
Swindon manager Martin Ling admits Louis Thompson was about to be substituted before his late goal against Walsall.
Louis Thompson's late drive earns struggling Swindon victory over Walsall, ending the Saddlers' unbeaten away record.
Swindon loanee Louis Thompson will be hoping to be included in the squad against Walsall after being left out in their 5-1 loss to Fleetwood on Saturday.
Walsall manager Dean Smith tells BBC WM why he is so pleased to see Swindon's Martin Ling bounce back from depression.