For the best part of a decade, Aidan O'Brien and John Gosden have carved up the Epsom Oaks, and it's likely to be a similar story when the classic takes place in the early hours of Saturday morning (eastern Australian time).
John Gosden and his son Thady have the favourite Emily Upjohn and likely second favourite Nashwa.
A daughter of Sea The Stars, Emily Upjohn has won all three starts, most recently a five and a half-length romp in the Group III Musidora Stakes at York.
Emily Upjohn is out of the stakes-placed Barathea mare Hidden Brief a sister to Hazarist, who placed in the Irish Oaks and Yorkshire Oaks. Hidden Brief is a three-quarter sister to the dam of Epsom Derby and Irish Derby winner Harzand, who, like Emily Upjohn, is by Sea The Stars.
Frankie Dettori rides Emily Upjohn while Hollie Doyle is on stablemate Nashwa.
A daughter of Frankel, Nashwa came from well back to win the Listed Fillies Trial at Newbury.
Her stakes-winning dam Princess Loulou (Pivotal) finished second in the Group 1 Prix Jean Romanet.
Aidan O'Brien has the numbers. Since winning with Shahtoush in 1998, O'Brien has been in the winner's circle nine times, including five of the last seven.
He has four of the eleven acceptors, with the most fancied being Ryan Moore's mount Tuesday.
Tuesday (Galileo) is a half-sister to the 2016 Epsom Oaks heroine Minding and last year's One Thousand Guineas winner Empress Josephine.
Another O'Brien-trained daughter of Galileo that has her admirers is the Moyglare Stud colour-bearer Thoughts Of June. She is coming off a win in the Listed Cheshire Oaks, defeating Above The Curve. At her next start, that daughter of American Pharoah (USA) came out and won the Group 1 Prix Saint-Alary.
Aidan O'Brien also has the highly-regarded Dubawi filly Concert Hall, which had little luck at her most recent start when third in the Group 1 Irish Thousand Guineas at the Curragh.
Joseph O'Brien has a contender with last start Group III Blue Wind Stakes winner Tranquil Lady.
The daughter of Australia is a half-sister to Group 1 Cox Plate winner State Of Rest (Starspangledbanner).
Godolphin relies on the Charlie Appleby-trained With The Moonlight, a homebred daughter of Frankel.
Out of the Group II winning Dubawi mare Sand Vixen, With The Moonlight impressed with a four and three-quarter length romp in the Pretty Polly Stakes at Newmarket.
