Hydrogen appears unlikely to run in the Racing Post Trophy at Doncaster, with connections instead opting to stay low key this autumn.

The Peter Chapple-Hyam-trained juvenile, who was the most expensive yearling sold at auction anywhere in the world in 2012, has yet to race competitively after he suffered a setback earlier in the year.

The 2.5 million guineas colt still holds an entry in the Group One in Yorkshire on Saturday week, but he is instead poised to run in a Newbury maiden.

David Redvers, racing manager for his owners Qatar Racing Limited, told Sky Sports News Radio: "We should see him, all being well, in two weeks in a Newbury maiden.

"I saw him do another piece of work the other morning under Jamie Spencer and he worked with a very fast lead-horse and went extremely well.

"He looks a nice mile-and-a-half horse, which is what you'd expect on pedigree.

"We'd just like to get him to win a maiden and put him away for the winter.

"He's certainly showing that he's way-above-average ability.

"I think he'll turn into a beautiful three-year-old."