6 for Ballydoyle in Derby Aidan O'Brien's Investec Derby plans remain up in the air as the Ballydoyle handler left in six horses at the latest forfeit stage for the Epsom Classic. The betting markets have been in overdrive over the last few days after Johnny Murtagh was not entirely satisfied with long-time ante-post favourite St Nicholas Abbey. Stablemate Jan Vermeer has now replaced him at the head of the betting after a smooth success in the Gallinule Stakes. With Dante winner Cape Blanco and Derrinstown Derby Trial scorer Midas Touch left in, as well as likely pacemakers At First Sight and Bright Horizon, O'Brien has an enviable hand. As expected, Godolphin paid the £75,000 to supplement Goodwood winner Rewilding, however they also added to the field the Mahmood Al Zarooni-trained stablemate Buzzword, fourth in the French Guineas. Sheikh Mohammed's operation are also set to run Al Zir, with Frankie Dettori booked on Rewilding and Ahmed Ajtebi on the former. Henry Cecil goes in search of a fifth Derby with Bullet Train, impressive when winning the Lingfield Derby Trial. In the same Prince Khalid Abdullah ownership is Sir Michael Stoute's Workforce, trying to break a statistic that says no horse ever beaten in the Dante Stakes has won the Derby. Michael Bell's Coordinated Cut falls into the same bracket. John Gosden's Dee Stakes victor Azmeel and the Mark Tompkins-trained Ted Spread are other trial winners going forward. Michael Jarvis' Hot Prospect completes the 15 possibles left in the Classic.