Aidan O'Brien fields six in Saturday's Dubai Duty Free Irish Derby, headed by last week's Queen's Vase winner Santiago.

The Authorized colt was a comfortable winner over a mile and six furlongs, but he drops back in trip to 12 furlongs just eight days later in search of Classic glory.

Arthur's Kingdom, who finished second in the King Edward VII Stakes, also makes a swift return to action, with Derrinstown Trial third Iberia also taking his chance.

Tiger Moth, Dawn Patrol and Order Of Australia, who filled the first three places in a Leopardstown maiden at the start of the month also line up.

O'Brien's sons, Joseph and Donnacha, are also represented in the Group One, with Joseph running the supplemented filly New York Girl along with the unbeaten Gallinule Stakes winner Crossfirehurricane and Curragh maiden victor Galileo Chrome.

Donnacha O'Brien sends out Gallinule third Sherpa.

Jessica Harrington's Gold Maze finished second in the Gallinule and tries his luck again while Chiricahua, Fiscal Rules, King Of The Throne and Sunchart complete the 15-strong line up.

Among jockey bookings, Emmet Mullins' outsider King Of The Throne will have a notable partner in Cheltenham Festival Grade One-winner Rachael Blackmore.

The leading jump jockey had Listed success on the Flat for Mullins last week on Oriental Eagle in the Martin Molony Stakes at Limerick.

Watch live coverage of the Dubai Duty Free Irish Derby Festival at the Curragh on RTÉ2 and RTÉ Player on Friday from 7-8pm, on Saturday (Irish Derby at 7.15pm) from 6-8pm and on Sunday from 3-5pm.