Tragedy as thoroughbred and his jockey are trampled in horror race

A racehorse has been put down after a jockey was horrifically trampled after another rider moved away from the barrier. 

Andrew Adkins fell from Hot 'N' Hazy in the home straight of race 1 at Rosehill Gardens, in Sydney's western suburbs, on Saturday.

Adkins was taken to Westmead Hospital, while the two-year-old colt, trained by Danny Williams, was euthanised. 

Racing NSW said the 22-year-old jockey suffered a fractured tibia and fibula that will be fixed with a nail and a fractured clavicle which will require plate fixation.

Adkins was dislodged after fellow jockey Hugh Bowman, who was riding eventual winner Smart Image, moved away from the fence and collided with Hot 'N' Hazy.

Racing NSW stewards have launched an inquiry into Saturday's fall and Bowman told stewards he didn't think his move would put other riders in danger: 'There was a shift by the horse in front of me (Mr Colourful) and I was committed to the move that I made. I felt at the time I made the call to go to the outside of Glyn I could do so without causing any interference to Andrew.'