Last week a late Jack Lester at Oldham Athletic goal secured Chesterfield's place in the Football League Trophy final at Wembley Stadium - which will be played on a weekend in March.
The game was initially to be played on Saturday, 24 March 2012 but an unconfirmed date will be rearranged. The Blades home league fixture with Scunthorpe United has also yet to be rearranged.