Grayson opted to leave goalkeeper Kasper Schmeichel and on-loan forward Sanchez Watt on the bench for the 2-1 Carling Cup defeat to Leicester on Tuesday.
Both of those players are expected to return to the starting line-up, while midfielder Lloyd Sam, who was left out the squad completely on Tuesday, is also set to return.
Striker duo Billy Paynter (shin) and Robert Snodgrass (knee) are still ruled out as is long-term absentee Patrick Kisnorbo (knee).
Defender Ben Parker is back in training after recovering from an Achilles injury and may be included in the squad.
Source: PA
Source: PA