The flagship of the Godolphin camp this year with victories in the Irish 2,000 Guineas and Prix Jacques le Marois, Dubawi had been 5-1 to sign of for the season with success in the Breeders' Cup Mile at Belmont Park later this month.
His final appearance came when finishing runner-up to Starcraft in the Queen Elizabeth II Stakes at Newmarket last month under a controversial ride form Frankie Dettori.
His trainer, Saeed bin Suroor, said: "We are going to miss him at Godolphin. He was the best three-year-old we had. I'm sure he is going to take his place among the best stallions in the world."
For Godolphin's chief rival, the Coolmore camp, there are no such injury setbacks. John Magnier reported yesterday that it is now "a strong possibility" that Hurricane Run, his Prix de l'Arc de Triomphe winner, will contest the Breeders' Cup Turf on 29 October.
* Another person has answered bail as part of the on-going City of London Police investigation into alleged race-fixing. A total of seven people, including the six-times champion jockey Kieren Fallon, returned on bail this week and have been ordered to report back to the police early next year.Reuse content