Both players picked up knocks during Saturday's 1-1 draw at Charlton and will be assessed closer to kick-off.
Warner sustained a thigh strain and Robinson picked up a groin injury, leaving Parry facing a nervous wait over their availability.
Ash Taylor also picked up a knock at The Valley but it is unlikely to rule the midfielder out the clash with Dave Penney's men.
However, highly-rated rookie striker Dale Jennings will miss out again with a groin injury.
Parry said: "He's the type of player who needs to feel he's right so we're going to rest him for a few days before we push him on again."