"I will make changes as the match goes on if needs be," said Gradi.
Midfielders James Bailey (abdominal) and Joe Grant (foot) and leading scorer Calvin Zola (eye) remain out.
Fourteen-goal striker Zola is set to see a specialist about the problem after a ball struck him in the face in training last week.
Meanwhile, Crewe have handed a trial to former Celtic trainee Dan Gardner. The 19-year-old striker, who plays for Vodkat Premier League side Flixton, will spend a month training at Gresty Road.