Aidan O’Brien is odds-on favourite to win his seventh Derby after sending out winners of all four of the major trial races in the last week.

Sir Dragonet got the ball rolling for the Ballydoyle team when taking the Chester Vase last Wednesday. Chester is O’Brien’s go-to course to teach horses prior to taking on Epsom, and Sir Dragonet, a son of 2012 Derby winner Camelot, could hardly have been more impressive on just his second ever start.