Ward, who netted his 12th goal of the season in the Rams' 3-0 home win over Bristol City on Friday night, has been struggling with a hamstring problem and came off midway through the second half against the Robins.
However, it was merely a precautionary measure and the Northern Ireland international should play at Elland Road on Monday.
"Jamie's problems in that area are well documented and it's really just about managing him," said Derby coach Andy Garner.
"It is good that he does come off as it gives him an extra 20 minutes' rest. He should be okay for Monday."
Gareth Roberts, 35, will be checked again. The player missed the 2-1 home win over Leicester prior to the international break due to a calf injury and he was absent again on Friday night.
Midfielder Craig Forsyth will probably continue to deputise at left-back should Roberts remain unavailable.
Rams boss Nigel Clough is keen to extend Forsyth's loan spell from Watford, which ends after the trip to Elland Road.
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