One of the three runners was Enthaar, hot favourite for the race and long time leader in betting. Having presented lame the Maher and Eustace 2 year old filly will undergo a second vets inspection on Friday morning.
Also in the deep end were fellow Blue Diamond hopefuls Dosh for the Graham Begg stable and Marine One for Lloyd Kennewell. Dosh currently sits at $14 in betting where as Marine One is an outsider of the race at $81.
The market could be blown out with the withdrawal of Enthaar who opened a $2.10 favourite for the $1.5m sprint feature.
A statement from Racing Victoria read that all three runners were showing signs of lameness in their front left leg.
"RV veterinary inspections for the Blue Diamond have commenced this morning. Enthaar, Marine One and Dosh are all lame in the near fore. They will be assessed by the stable and re-inspected by RV veterinarians tomorrow. An update on remaining horses will be provided during the day," the statement read.
As a result of the news Enthaar has drifted in betting out from $2.10 to $2.50 with Blue Diamond prelude winner General Beau receiving further backing and moving into $5.50 clear second favourite.
Currently there are no emergencies that could fill any spaces in the barriers following late withdrawals but all in betters will be sweating and paying a close eye on Enthaar who has been impressive on each trip to the track.
In other news surrounding the Blue Diamond, champion jockey Damien Oliver has chosen to partner with the $7.5 Anamoe out of the Godolphin contingent in the race. Having had a choice to pair with any of the the three which also included Ingratiating and Arcaded he opted for Anamoe who drew barrier 15.
Anamoe finished second to General Beau last time out in the Blue Diamond Prelude for Colts and Geldings.