Irish Grand National contender Nick Rockett has handicapper 'shaking in his boots'
Having dominated the Cheltenham Festival, Willie Mullins has set his sights on the Boylesports Irish Grand National on April 1 - with unexposed novice Nick Rockett likely to be all the rage.
The champion trainer is seeking a third win overall in the richest jumps' race run in Ireland and back-to-back victories after the unlikely success of I Am…