Trainer John Dunlop is retiring after 46 years in racing.
He has won 10 British Classics – including the Derby in 1978 with Shirley Heights and in 1994 with Erhaab.
He also won the 1000 Guineas and the Oaks with Salsabil in 1994.
He has trained winners of all the British Classics except the 2000 Guineas.
And last week he saddled Times Up to win the Doncaster Cup at the St Leger meeting (14 September).
His sons, Harry and Ed, are also trainers.
The 73-year-old, who is based in Arundel, West Sussex, cited a reduced string and his wife’s ill health for the decision.
John returned to training after suffering a ruptured aorta in 2001.
This news story was first published in the current issue of Horse & Hound (20 September 2012)