Lincoln McCarthy is scheduled to have surgery on his left foot after a recurrence of an old injury and will be sidelined for five months.
Cats' football manager Steve Hocking told K-Rock Football the 21-year-old needed the operation to generate blood flow back into the foot.
"It's the cartilage that lines the joint where your leg bones come down and your foot actually joins in," Hocking said.
"He's got some corrosion in the area. It's like a flap that's hanging within that cartilage.
"What they have to do is get in there and irritate that cartilage, and that generates blood flow and regenerates it.
"The lack of blood flow into that region is a real concern for anyone who suffers from a fracture within that bone."