KEY POINTS:
Australia's most valuable racehorse, Haradasun, will round out his career in Europe in the care of champion Irish trainer Aidan O'Brien.
Earlier this year, the Irish-based stud Coolmore bought a half share in the dual Group One winner for a reported A$22.5 million.
However, this spring he has raced below par and finished second-last in the Mackinnon Stakes at Flemington on Saturday.
Trained by Tony Vasil to win the George Ryder Stakes and Doncaster Handicap during the Sydney autumn carnival, Haradasun is a half-brother to Group One winner Elvstroem.
Haradasun has had six starts this preparation and until his flop over 2000m on Saturday had registered five minor placings including a third in the Cox Plate.
His six career victories have been between 1100m and 1600m and he will be kept to the shorter distances.
"Haradasun will do the rest of his racing in Europe," Coolmore's Colm Santry said.
"He'll be heading over to Ireland to continue racing and will probably be aimed at some of the good mile races in the new season."
The horse was lame after the Mackinnon and Vasil feared he had a serious problem but Santry said that did not appear to be the case.
"X-rays have been taken and there appears to be no damage," he said.
"The lameness is soreness and there is no apparent tendon damage."
The new season has not been kind to Vasil with unbeaten sprinter Lucky Secret forced to miss the big races after incurring an automatic three-month ban when he haemorrhaged in a race in late July.
The winner of seven races, Lucky Secret will run in the MFS Stakes (1100m) on Thursday.
- AAP