Plans are currently on hold for dual Dubai World Cup winner Thunder Snow after he was scratched from an intended outing at Saratoga.
The five-year-old was due to run in the Whitney Handicap, but on the day of the race he spiked a temperature.
He returned to Saeed bin Suroor's stable in Newmarket on Tuesday – and while the Breeders' Cup is still on the agenda, where he runs before then is up in the air.
"He got back from Saratoga today," said Bin Suroor.
"The horse ran a temperature, which was why we had to scratch him from the race.
"There are no plans for him at the moment – we'll just keep monitoring him and see how he is doing and make a plan when we think he's better."
Patience is likely to be needed in the meantime.
Bin Suroor added: "The Breeders' Cup is obviously the plan – and I'd like to get a race in somewhere – but until we can start training him again, we don't know where that will be.
"It was just unlucky. Before the race, he had been training really well, and he would have had a good chance in the race."