Trainer Ciaron Maher has recommended that connections of Group One winning mare Set Square retire the galloper immediately.
Veterinary reports have shown that the 2014 Crown Oaks winner has a stress fracture.
She was due to run in last weekends Caulfield Cup until stewards found her to be stepping short behind.
She was scratched the morning of the race and has since been ruled out of the entire Spring Carnival.
The C Maher stable reported that Set Square has been found to have a stress fracture and will be out of the spring.
— RVStewards (@RVStewards) October 20, 2016