Jockey Russell Hanson will be sidelined for at least six weeks after breaking two ribs and spraining an ankle in a heavy fall.
The much-travelled hoop fell from Get Off The Couch when Forebear, ridden by Nicole Hopwood, veered out sharply approaching the 200m in the first race at Esperance on Wednesday.
Hanson was taken to hospital for treatment but was able to return home to Perth on Wednesday night.
"I was in full flight going for a run when the other horse came out quick," Hanson said.
"It is a bad break in the ribs and the ankle is black and swollen.
"I am putting ice packs and liniments on the ankle and can get around a bit.
"It could be six to eight weeks before I can ride again."
Stewards suspended Hopwood for 23 days, sidelining her for the next two Esperance meetings.
Jockey Daniel Staeck starts a 14-day careless riding suspension after he rides Mr Moet in Tuesday's Golden River Developments Perth Cup (2400m).
Stewards found Staeck guilty of shifting out when insufficiently clear on Redwood Rose at the 400m and causing Miss Marvel (Jason Whiting) to check and bump against Granadilla Miss (Shaun Meeres) in the fifth race at Pinjarra on Wednesday.
·Stewards will implement their hot weather policy at Ascot tomorrow with the pre-race parade times reduced due to a forecast top of 42C.
Horses will only be paraded under the shade of the trees in the stalls area before each race.
They will only go to the main parade ring when returning to scale after each race. Extra vets will be on hand to attend to horses.