U S Navy Flag© Photo Healy Racing
Aidan O'Brien has four contenders for Saturday's Group 1 contest at Newmarket.
The Ballydoyle maestro won last year's renewal for the fifth time with dual Guineas hero Churchill.
Middle Park Stakes scorer US Navy Flag is joined by Champagne Stakes-winning stablemate Seahenge, Mendelssohn and Threeandfourpence.
O'Brien said: "US Navy Flag is in good form. He's going up to seven furlongs for the first time, but when we stepped his sister (Roly Poly) up she improved. He hasn't done much since the last day, but he seems to be in good form.
"We were delighted with Seahenge in Doncaster. He was still a bit babyish, but we were delighted with him and he's been in good form since.
"Mendelssohn is a bit immature mentally and he's inclined to have a look around, so that's why we've put blinkers on him.
"He's worn the blinkers at home and they seem to help him concentrate so it will be interesting to see. He has been in good form.
"Threeandfourpence had a nice run first time at the Curragh and at Fairyhouse (last time) we knew the six furlongs would be plenty tight enough for him, but thought the experience would do him well.
"He seems in good form and Mrs Stockwell (owner) is happy to let him take his chance. He's by War Front so the better ground won't be a disadvantage anyway."
