Barney Roy, winner of this year's St James's Palace at Royal Ascot, has been retired to stud.
The Richard Hannon-trained colt also finished second in the 2000 Guineas at Newmarket and was beaten just a nose by Ulysses in the Eclipse at Sandown during the 2017 campaign.
He signed off with a disappointing ninth place behind Cracksman in last month's Champion Stakes and will now stand at Dalham Hall Stud for a fee of £10,000.
Hannon told www.darleyeurope.com: "Barney Roy is by far the best colt I have trained and the most athletic horse I have seen. We look forward to seeing his yearlings at the sales."
Sam Bullard, director of Darley stallions, added: "Barney Roy was the leading miler of his generation, and ran with great credit over 10 furlongs too, beaten only a nose in the Eclipse in a time that would have won him almost any other running.
"If his stock inherit his zestful way of running and ferocious tenacity in the finish, they will surely do well."
