Star Kiwi jockey Michael Walker screamed at medical stuff to "cut off my leg" after the accident which could sideline him for a year.
The Victoria based jockey will undergo his third surgery at Dandenong Hospital today after an "innocuous" fall last week caused a fractured fibula and torn ACL.
The 37-year-old, who has ridden 25 Group One winners, faced the prospect of having a leg amputation as emergency surgery was performed on Friday.
Speaking under strong main medication, he told media that "there was a possibility the nerves in my leg could die and the leg could die and they may have had to amputate".
"I was screaming to them to cut off my leg, it felt like it was going to explode," the Rotorua and Waitara raised Walker was reported as saying by News Corp Australia.