Murphy has already missed five games this season with plantar fasciitis and he disrupted some scar tissue in the same foot less than a quarter into last week’s 109-point thumping by the Demons.
While its likely Murphy won’t play this week, club football manager Andrew McKay says they will not know the extent of the injury until later on in the week.
“Marc Murphy disrupted some scar tissue in his foot on the weekend, spent some time on the bench, (but) played the rest of the game,” McKay said.
“We’ll just see how he pulls up over the next couple of days before deciding on his prognosis.”
McKay also said that Charlie Curnow is likely to return to the side this week if he passes a fitness test after he was withdrawn from last week’s game with quad tightness.
The Blues will also regain Ed Curnow from his one-week suspension for making deliberate contact with an umpire.