Slumber, trained by Barry Hills and owned by Khalid Abdulla, won the Derby Trial at Epsom with favourite Musawama a well-beaten fourth of five runners.
Musawama was the only one on show with a Derby entry, but Michael Hills delivered Slumber just before the two-furlong marker and the colt won easily.
Slumber is not entered for the Classic but could be supplemented for the race.
Frankel, trained by Henry Cecil, is favourite to win this year's Derby on 4 June, and won on Saturday at Newbury.
Slumber, a 7-1 shot for his win on Wednesday. finished three and a half lengths clear of Borug having finished in mid-division on his only previous start - at Newbury in 2010.
On that occasion, he looked green against some more experienced rivals but left his rivals for dead when the trainer's son asked him for an effort early in the straight.
Hills' other son, his assistant Charlie, said: "It was a nice surprise as we really brought him here to get a bit more experience.
"The Chester Vase would be the obvious race for him now. It was only the second run of his life and he's still babyish, but that was impressive."