Unbeaten mare and early Cox Plate favourite Atlantic Jewel has been ruled out of the spring with a tendon issue.
Trainer Mark Kavanagh said his star four-year-old was found to be lame following a gallop on Tuesday morning with subsequent scans revealing she had injured a tendon.
"We will continue to assess the injury and it would be my opinion at this stage that she will be unable to resume full training for eight weeks," Kavanagh told Racing Victoria.
"It may be the end of the spring, but it's not the end of the horse."
The winner of all of her seven starts, Atlantic Jewel had been favourite for the Cox Plate with TAB Sportsbet which has now taken her out of its market.
More Joyous is the new top pick for Australasia's weight-for-age championship at $6 ahead of her Gai Waterhouse-trained stablemate Pierro at $7.
Atlantic Jewel is widely considered racing's next superstar and her loss comes on the back of the recent announcement that champion Black Caviar will be rested this spring.
Early Cups fancy Lucas Cranach was also ruled out of the upcoming carnival to undergo surgery for a bone chip.