Everest slot holder Damion Flower is considering his options with his chosen runner English out of the $13 million race.
The Kelly family, owners of the Gai Waterhouse and Adrian Bott-trained mare, have decided to give her a spell after she was found to be lame following a jump-out at Randwick.
English finished last of four runners in Monday's hit-out and Racing NSW chief veterinary surgeon Toby Koenig subsequently diagnosed her as grade 1/5 lame.
Her stablemate Invincible Star is also battling to make it to The Everest at Randwick on Saturday week with Koenig assessing her as 3/5 lame after examining her on Monday.
Greg Ingham's GPI Racing holds the slot currently occupied by Invincible Star.
The Australian Turf Club is expected to announce on Wednesday which horse will run in its name with connections pulling the pin on Nature Strip after his failure in Friday night's Group One Moir Stakes won by Viddora.
Trainer Lloyd Kennewell believes Viddora deserves a slot but so far he has been unable to negotiate a suitable deal.