Ward and Bryson have missed the Rams' last two matches with hamstring and groin injuries respectively but manager Nigel Clough hopes to have them available for the visit of the Foxes on Saturday evening.
He told the Derby Telegraph: "They will train one-to-one with the physios this week up to Friday, when the plan is for them to train and we will see how they go from there.
"The weather as it is at the moment is not helping, the pitches are solid. We have trained indoors, which is not good for either player at the moment, so they are better doing one-to-one sessions and building up from there.
"There is a two-week international break after Saturday so even if they were to feel their injuries, at least they would have that break to recover."
Clough also revealed that Kieron Freeman (ankle) trained on Tuesday and fellow defender Mark O'Brien (knee) is doing one-to-one sessions.
"Kieron has trained but because we are indoors, Mark cannot train because of his knee. He will do some work with the physios," said the Rams boss.