Emotionless is likely to miss the G1 Caulfield Cup in Melbourne, Australia on Saturday, 20 October, after pulling up lame following a piece of work at Werribee.
Trainer Charlie Appleby said he had been advised by local vets not to work the horse again until the results of a bone scan became available.
Appleby said: “Following routine exercise on Saturday, Emotionless was seen to cool out lame behind. But following a subsequent thorough veterinary examination, no significant findings were apparent.
“Because of the degree of lameness, in the best interests of the horse himself, we have taken the decision not to continue his training program until he has undergone scintigraphy (bone scan).
“This is on the advice of Racing Victoria vets.
“Because he will miss several days work, his participation in the Caulfield Cup is now very doubtful.
“If the bone scan shows nothing significant, he will resume full training, and we will look for another suitable target for him,” the trainer added.
Emotionless is currently rated as as $26 chance for the race with BetEasy.