nick scholfield has been lined up to ride jim culloty 's spring heeled in the crabbie 's grand national at aintree on april 11 .
scholfield had been expected to partner paul nicholls-trained sam winner , who was pulled up in the cheltenham gold cup , in the £ 1million race .
but the champion trainer said on wednesday it was unfair to tie scholfield down to a gelding which is far from certain to run when the mount on another leading definite contender is being offered that