Jack Hobbs, ante-post favourite for the Derby, is also one of several highly-rated horses putting their claims for the premier Classic on the line. John Gosden’s colt is taking a big leap in grade, having won a maiden and a handicap in convincing fashion. The Newmarket handler has a second string to his bow in Golden Horn, who is also unbeaten having made a winning reappearance in the Feilden Stakes at Newmarket last month. Jack Hobbs heads the market for the Grade Two trial on the Knavesmire ahead of Elm Park, winner of the Group One Racing Post Trophy at Doncaster in October. He missed the 2000 Guineas because the ground was deemed to be too fast and was switched by trainer Andrew Balding to this race instead. The Barry Hills-trained Nafaqa waited for the Dante after being a late withdrawal from last week’s Dee Stakes at Chester because of the rain-softened ground. Chester Vase third Medrano and Lord Ben Stack make up a field of eight. Ol’ Man River was tailed off in the Qipco 2000 Guineas, won by his stable companion Gleneagles, after being heavily eased down by Joseph O’Brien. John F Kennedy was deposed as Investec Derby favourite after he became stuck in the testing conditions when a well-beaten last of three to Success Days in the Ballysax Stakes at Leopardstown. Press Association John F Kennedy and Ol’ Man River try to redeem their reputations in the Betfred Dante Stakes at York on Thursday.