The high-class filly Lady Kaya tragically suffered a fatal injury this morning when she broke a hind leg during her final workout for Royal Ascot.

Her trainer Shelia Lavery tweeted.

Bred by John O'Connor, the Dandy Man filly had really put the Shelia Lavery stable on the map. Running in the colours of her niece Joanne, she had won two of her seven races including the Group 3 Guineas Trial at Leopardstown and finished second in the Group 1 Moyglare Stud Stakes and was a terrific second behind Hermosa in the 1000 Guineas at Newmarket last month.

“She was having her final piece up the Curragh on the Old Vic – she was going beautifully and (jockey) Robbie (Colgan) just heard a bang,” said Lavery. “She shattered her hind leg. She was the soundest filly I’ve ever had.”

The trainer added nothing could be done to save Lady Kaya.

“We boxed her off the gallops, brought her to Anglesey Lodge - who X-rayed her but said she couldn’t be saved, and they put her down."

“Heartbroken. In fact that doesn’t describe the feeling of everybody here. She was owned by my niece, Joanna, who was there this morning. We all went to the clinic with her.”

She was due to run next week in the Commonwealth Cup at Royal Ascot.