Aidan O'Brien says his mighty Derby team will come forward for their trials

Aidan O'Brien had a word of warning for those planning to get the better of his huge array of Investec Derby trial winners at Epsom – you ain't seen nothing yet.

The Ballydoyle trainer has dominated the build up to the Classic, landing major British prep races at Chester, Lingfield and Epsom as well as Ireland's key warm-up event at Leopardstown.

And the man who is bidding for a record-equalling seventh triumph in the race reckons there will be even better to come from his hugely powerful team in the Derby itself a week on Saturday.

Investec Derby card and betting

"They have done what has been asked and we've consciously been easier on the horses this year than before," O'Brien said. "They'll come forward for their trials."

Sir Dragonet could head a seven-strong Epsom team for the trainer, who is bidding to match Robert Robson, John Porter and Fred Darling as a seven-time winner.

The Prix du Jockey Club had been mentioned as an option for the wide-margin Chester Vase winner but he will instead be supplemented for Epsom at a cost of £85,000 next Monday.

"Epsom is always where we want to be," O'Brien said. "The lads would prefer Sir Dragonet went to Epsom rather than France.

"We don't have to make our mind up until the supplementary stage, but we're favouring Epsom. John [Magnier] has always considered Epsom to be the holy grail.

"He's always been a very easy horse at home and has never tried to stand out from the crowd – what we've asked him to do he's done really well."

Sir Dragonet is a best-priced 7-2 favourite for the Derby and is set to be joined by a host of stablemates, including the winners of the Dee Stakes (Circus Maximus), Lingfield Derby Trial (Anthony Van Dyck), Blue Riband Trial (Cape Of Good Hope) and Derrinstown Stud Derby Trial (Broome), plus Vase second Norway and Dante Stakes fourth Japan.

"Circus Maximus could go to Epsom and he'll come forward a good bit from Chester," O'Brien said on Tuesday.

"Ryan [Moore] and Donnacha [O'Brien] were very happy with Broome when they rode him, while I think Norway will get a mile and a half – we rode him patiently at Chester where Sir Dragonet quickened better than him in the Vase. He could go to Epsom as well.

"We always thought Anthony Van Dyck would get the distance, and he ran some very good races over shorter as a two-year-old. Ryan thought he got the trip very well at Lingfield.

"Cape Of Good Hope has won at Epsom and has come forward, while Japan worked well this morning and will get a mile and a half.

"The lads will decide how many to run, but there will be a good crew there."

O'Brien has previously won the Derby with Galileo (2001), High Chaparral (2002), Camelot (2012), Ruler Of The World (2013), Australia (2014) and Wings Of Eagles (2017).

O'Brien is responsible for eight of the 18 acceptors for the Classic, while the Hughie Morrison-trained Dante Stakes winner Telecaster could be added to the field along with Sir Dragonet on Monday.

Did you know you can bet via the Racing Post mobile app/website? Simply sign in with your favourite bookmaker via the Accounts button and then bet direct from our racecards