Postpublished at 18:50 Greenwich Mean Time 24 February 2015
Already we can tell you that Derby County boss Steve McClaren has made a couple of changes to the side that beat Sheffield Wednesday on Saturday, with Ryan Shotton and Jesse Lingard replacing Jake Buxton and Simon Dawkins.
There's one change to the Charlton Athletic line-up too, with Lawrie Wilson replacing Jordan Cousins.
Derby County: Grant, Christie, Forsyth, Keogh, Hendrick, Lingard, Hughes, Ince, Shotton, Thorne, Bent.
Substitutes: Bryson, Buxton, Dawkins, Ward, Roos, Thomas, Mascarell.
Charlton Athletic: Henderson, Soll, Fox, Ben Haim, Johnson, Gudmundsson, Buyens, Wilson, Bulot, Vetokele, Watt.
Substitutes: Dmitrovic, Gomez, Bikey-Amougou, Eagles, Harriott, Diarra, Lepoint.