Aidan O Brien

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Bookmaker reaction after Tuesday’s forfeit stage was to install the Newmarket fourth Elarqam as a marginal 9-4 favourite over Gustav Klimt at 3-1.  Photograph:  Alan Crowhurst/Getty Images

It is 21 years since Aidan O’Brien first burst on the classic scene with a famous Curragh Guineas double and the legendary trainer is shaping up to tr(...)

Rhododendron ridden by Ryan Moore wins the Al Shaqab Lockinge Stakes at Newbury.  Photograph: Tim Goode/PA Wire

The decision-making skills of Aidan O’Brien are often what sets him apart from the rest and switching Rhododendron back to a mile proved a winning tac(...)

Rostropovich (right) ridden by Ryan Moore wins the  Dee Stakes at Chester. Photograph:  Martin Rickett/PA Wire

Rostropovich provided Aidan O’Brien with a fifth victory in the last seven renewals of the Dee Stakes at Chester. The Frankel colt was a Group Two wi(...)

 Sean Levey and Billesdon Brook en-route to Newmarket success. Photograph: Alan Crowhurst/Getty

Sunday’s shock 66-1 Newmarket 1,000 Guineas winner Billesdon Brook could attempt a classic double at the Curragh later this month. Trainer Richard Ha(...)

Mendelssohn trots on the track on Thursday during morning workouts for the Kentucky Derby at Churchill Downs  in Louisville, Kentucky. Photograph:  Michael Reaves/Getty Images

Ryan Moore believes Mendelssohn has plenty in his favour as the colt bids for a ground-breaking win in Saturday’s Kentucky Derby. No horse from outsi(...)

Séamus Heffernan could ride Aidan O’Brien’s Gustav Klimt in the  Qipco 2000 Guineas at Newmarket on Saturday. Photograph: Morgan Treacy/Inpho

Séamus Heffernan is in the frame for the plum ride on ante-post favourite Gustav Klimt in the Qipco 2000 Guineas at Newmarket on Saturday. With Ryan (...)

 Ryan Moore and  Mendelssohn win the UAE Derby at Meydan Racecourse  last year. Coolmore’s number one rider Moore will team up with Mendelssohn in Kentucky Photograph: Getty Images

No sooner has the National Hunt season ended than the countdown to the classics begins with Aidan O’Brien in pursuit of an unprecedented Classic hat-(...)

Ryan Moore on Order of St George wins the The Vintage Crop Stakes at Navan. Photograph: Bryan Keane/Inpho

Order Of St George got his season off to a successful start when outclassing his two rivals in the Vintage Crop Stakes at Navan on Sunday. The 2016 G(...)

Colin Keane and  Who’s Steph come home to win The Ballylinch Stud ‘Priory Belle’  1,000 Guineas Trial Stakes at Leopardstown. Photograph: Ryan Byrne/Inpho

Gustav Klimt booked his ticket for Newmarket in swooping late to bag the Ballylinch Stud 2,000 Guineas Trial Stakes at Leopardstown. Aidan O’Brien’s (...)

Mendelssohn: will be the top-rated starter in the famous Kentucky Derby at Louisville next month. Photograph: Horsephotos/Getty Images

Mendelssohn is officially top-rated among the contenders for next month’s Kentucky Derby but the man who has given him that rating reckons the hugely(...)

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