Dawn Approach will face a maximum of 14 opponents in Saturday's Investec Derby at Epsom.
Jim Bolger's unbeaten Qipco 2000 Guineas winner has stamina questions to answer on the Downs having never run over further than a mile and even his effervescent trainer has admitted there is no guarantee he will stay a mile and a half.
He could at least face one surprise rival in the shape of Aidan O'Brien's Magician, an easy winner of the Irish 2,000 Guineas on Saturday, while German contender Chopin has been supplemented at a cost of £75,000 by Andreas Wohler.
O'Brien can also call on Derrinstown Trial winner Battle Of Marengo, Newmarket Guineas sixth Mars, unbeaten Chester Vase winner Ruler Of The World, Flying The Flag and Festive Cheer.
Andrew Oliver's First Cornerstone, who ran a pleasing race when fifth in the Irish Guineas on what was his seasonal reappearance, is another possible for Ireland along with David Wachman's Galileo Rock.
Andre Fabre took the spoils two years ago with Pour Moi and has followed a similar route to Epsom with Ocovango, while York's Dante Stakes is usually seen as the best trial in Britain and Elaine Burke's Libertarian won that in good style, beating Trading Leather, who has also been left in by Bolger.
James Tate's Mirsaale and the John Ryan-trained Ocean Applause complete the confirmations.
Bolger confirmed Trading Leather had been left in the race in case anything happened to Dawn Approach.
He said: "Trading Leather has been left in the Investec Derby as a precaution. If anything were to happen to Dawn Approach, I would run Trading Leather.
"Dawn Approach is continuing to please me and I am looking forward to running him in the Investec Derby at Epsom Downs on Saturday. I thought Magician's performance on Saturday was very smart."