But even Godolphin and its trainer Saeed bin Suroor insist the Americans are the favorites, notably Animal Kingdom.
Simon Crisford, Godolphin's racing manager, who accompanied Al Zarooni to the hearing, expressed his thoughts to gathered reporters.
CNN: Trainer who doped leading horses banned for eight years
It was a quiet festival for Dettori in 2002, and his only winner came on a non-Godolphin horse.
He had four rides at the meeting on September 16, two for Dubai-owned Godolphin, without securing a winner.
"Mr Al Zarooni acted with awful recklessness and caused tremendous damage, not only to Godolphin and British racing, " he said.
CNN: Trainer who doped leading horses banned for eight years
Godolphin is one of the world's most successful stables, with more than 2, 000 race wins since it was formed in 1992.
The Godolphin stables train horses in Dubai during the U.K. winter before moving them to England for the summer racing season.
He landed the post after successful spells with Luca Cumani and as understudy to Frankie Dettori at Godolphin and Michael Kinane at Ballydoyle.
The review follows the eight-year ban imposed last week by the British Horseracing Authority on Mahmood Al Zarooni, a trainer at Godolphin stables.
Godolphin, the stables owned by Dubai ruler Sheik Mohammed bin Rashid al Maktoum, has five entrants, including 2012 winner Monterosso, who has struggled of late.
Last month, Dettori's 18-year association with the Godolphin stable came to an end and he planned to ride next year as an unattached jockey.
Testers from the BHA found anabolic steroids -- ethylestranol and stanozolol -- in 11 samples taken from 45 horses from Godolphin's Newmarket stable in eastern England.
Godolphin's Al Zarooni had saddled both Monterosso and Capponi, and told CNN he felt "incredible" about the result in only his second full season with Godolphin, Sheikh Mohammed's vast racing operation.
Sheikh Mohammed himself, speaking exclusively to CNN after the race, said he felt "doubly happy" with the result, which saw the World Cup return to Godolphin hands after a six-year absence.
Opinion Poll was ridden to victory in that race by Frankie Dettori, who worked for the Godolphin team for 18 years, but is now serving a six-month ban for doping.
Godolphin pledged to cooperate with the U.K. racing authorities.
Employed by the ruler of Dubai's prestigious Godolphin operation-- Sheikh Mohammed bin Rashid Al Maktoum -- trainer Mahmood Al Zarooni has been summoned to attend a disciplinary hearing in central London on Thursday.
Dettori revealed in October that he will be ending his fulltime role at the Godolphin stable next year, and last month news broke about his positive test during a race meeting at the Longchamps course in Paris.
Godolphin's Certify, unbeaten in four career outings and winner of the Shadwell Stud Fillies' Mile at Newmarket last September, was one of the horses to test positive and will not be allowed to take part in the 1, 000 Guineas at Newmarket next month.
The Middleham handler has now saddled five of the last nine winners of the two-mile contest after the three-year-old kept pace and accelerated in the straight to beat Yankee Doodle by four lengths, with Godolphin's Mastery third, another three-quarters of a length back.
Dubai's ruler Sheikh Mohammed celebrated as Mikael Barzalona rode Monterosso to victory in the the emirate's World Cup in April, but the result was somewhat overshadowed by the death of another Godolphin horse, Fox Hunt, in the inaugural Gold Cup held earlier in the meeting.
But Devolz said the Godolphin scandal has prompted the international governing body to consider a ban on steroids and other controlled substances during training, with a recommendation that a horse should be removed from training and put out to pasture if it requires steroids for ill-health or other medical reasons.
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