Frankie Dettori is confident that Camelot is likely to be suited by the style of the race in the Prix de l'Arc de Triomphe.
The 2000 Guineas and Derby hero, who failed to complete the Triple Crown when only second in the St Leger at Doncaster, was confirmed an intended Arc participant on Wednesday by the Coolmore team.
But the most sensational news to come out of Ballydoyle was that the three-year-old would be partnered by Frankie Dettori, retained rider for Coolmore's biggest rivals Godolphin.
Dettori rode O'Brien's Scorpion to win the St Leger in 2005 and has been booked for the plum ride this weekend due to regular partner Joseph O'Brien being unable to do the weight of 8st 11lb.
Dettori feels this weekend's race will suit Camelot ideally and he has fared very favourably in the draw in stall five.
"If you are going to judge him, judge the horse more on his Guineas and Derby runs, which were very impressive," Dettori told Racing UK.
"He was ridden to stay (in the Leger), it was a stop-start pace early doors, although I still think the horse quickened well at the end.
"He looks to be tremendously well balanced. He came into his own in the Derby when he ran over a mile and a half. He spread-eagled the field and was mighty impressive.
"The Arc will be his absolute cup of tea."
When asked if he will go forward on Camelot in the race, he said: "I think there are two or three pacemakers and the Japanese horse and the Aga Khan's filly need a strong pace. It should be run at a high tempo and if that's the case it doesn't matter.
"A low draw is quite key.
"Aidan will come up with a plan and let's hope for the best on Sunday."
While Camelot clearly takes star billing, it should not be forgotten O'Brien has a second major contender in St Nicholas Abbey, with Joseph free to ride him at 9st 5lb.
O'Brien junior partnered the five-year-old to a superb victory in last year's Breeders' Cup Turf and he is confident of a bold show.
The jockey said: "Hopefully he'll run really well. He's been running well all season and I don't see why he won't again.
"He ran well in it last year and it's a big thrill to be riding him in a race like the Arc.
"It's a big race, and I hope he runs well."
St Nicholas Abbey is in stall 10, while O'Brien also saddles expected pacemakers Robin Hood (stall 12) and Ernest Hemingway (stall four).