Racing:Soldier Of Fortune is the "more likely runner" of Aidan O'Brien's duo in the MBNA Chester Vase on the Roodee next Thursday.
O'Brien has also put the once-raced Glenstal Abbey in the Group Three contest over an extended mile and a half.
However, the Ballydoyle handler revealed Soldier Of Fortune, who has already won a French Classic trial at Longchamp last month, is the front-runner to enhance his Vodafone Derby profile in the Chester Vase.
"Both are possibles but Soldier of Fortune is the more likely runner," O'Brien told the Racing Post.
The Galileo colt is currently a 16-1 chance to win the Derby on June 2.
