Aidan O'Brien

City Of Troy may prove too much of a mama’s boy to pull off Classic success

So much of $7 million Breeders’ Cup highlight boils down to whether Irish star is a Justify or a Galileo

Lake Victoria has inside draw to overcome if she’s to get Breeders’ Cup off to flying start for Ballydoyle

Four Irish starters line up for opening contest of 41st Breeders’ Cup in Del Mar

Hewick added to €150,000 Grade One highlight at Down Royal ahead of ‘Shark’ Hanlon suspension

Aidan O’Brien turns to Frankie Dettori for some of his Breeders' Cup runners in Del Mar

Irish favourite Jan Brueghel ruled out of $8m Melbourne Cup after failed veterinary test

Coolmore ownership of St Leger winner left ‘extremely disappointed’ as Aidan O’Brien’s chequered history with Australia’s biggest race continues

Aidan O’Brien closing in on becoming most successful trainer at Breeders’ Cup

Irishman’s tally of 18 Breeders Cup victories only two behind renowned US trainer D Wayne Lukas

Clean sweep for Irish juveniles in weekend Group Ones as Twain enters next year’s Guineas picture

Joseph O’Brien lands three-runner Criterium De Saint-Cloud with Tennessee Stud a day after old rival Hotazhell wins Futurity

Jessica Harrington’s Hotazhell aiming to take tried and trusted route to Futurity glory at Doncaster

Unbeaten French star Maranoa Charlie has potential championship status in sights at Saint-Cloud

Aidan O’Brien crowned British champion trainer for seventh time with close to €10m in prize money

Record-breaking Irish trainer is closing in on 20 Group One successes for 2024

Aidan O’Brien enjoys 170-1 four-timer at Leopardstown as Exactly secures Killavullan Stakes

Sigh No More springs 40-1 shock in the Eyrefield Stakes for Joseph O’Brien

‘Something that we’ve never seen before’ - Aidan O’Brien hails Kyprios after stunning Ascot win

Chesnut star makes it a magnificent seven victories from seven starts this season including four Group Ones

Ground conditions again prove central element in Champions Day conclusion to cross-channel flat campaign

Aidan O’Brien pitches Arc third Los Angeles against Economics and Calandagan in Champion Stakes

The Lion In Winter leads Aidan O’Brien’s team into superpower Dewhurst clash with Godolphin

Willie Mullins aiming for record-equaling fourth Cesarewitch success with ex-German Sea Of Sands

Revival in French racing fortunes could be underlined in Prix de l’Arc de Triomphe

Even in City Of Troy’s absence the stature of Europe’s greatest prize is secure

Juddmonte pay €120,000 to add top filly Bluestocking to Prix de l’Arc de Triomphe field

A total of 18 remain in contention for Europe’s showpiece race with Aidan O’Brien taking out Opera Singer

Joseph O’Brien’s Apples And Bananas hits €495k jackpot in Goffs Million

Highly-rated colt hangs on under jockey Dylan Browne McMonagle to beat Aidan O’Brien’s Antelope Canyon

Lake Victoria powers to impressive Cheveley Park victory for Aidan O’Brien

O’Brien’s Whistlejacket loses out to Charlie Appleby’s Shadow Of Light in Middle Park Stakes at Newmarket

Irish Cesarewitch sponsorship review to take place following Sunday’s renewal of €600k feature

Jessica Harrington’s Trevaunance fourth to Rebel’s Romance in German Group One

Top flat rider Ryan Moore tries his luck at Punchestown on Tuesday

Sosie favourite to give renowned French trainer André Fabre a ninth Arc success

Kyprios regains Leger crown to join elite Ballydoyle group of Group One winners

Scorthy Champ gives Joseph O’Brien third win in five years in National Stakes

Economics and jockey Tom Marquand the targets for Irish Champion Stakes opposition

English rider also teams up with Matron Stakes favourite Porta Fortuna at start of €5.1 million Irish Champions Festival

Leger favourite Kyprios part of a blue-chip book of Curragh Group One rides for Ryan Moore

Christophe Soumillon steps in for Prix Vermeille ride on Arc hope Opera Singer at Longchamp

Aidan O’Brien to field St Leger trio as seven declared for Saturday’s race

Racing news: Nicky Henderson reports Constitution Hill in ‘particularly good form’ after wind operation

Economics favourite to break Aidan O’Brien’s run of Champion Stakes success

Auguste Rodin tops Irish trainer’s hopes for a ‘Lucky 13th’ victory in Saturday’s Leopardstown feature the Champion Stakes

Illinois tops Leger betting as Ballydoyle team set to attack St Leger in force

Irish Oaks winner You Got To Me supplemented into Saturday’s St Leger at Doncaster

Mickael Barzalona pulls off inspired Moulin success on Godolphin outsider Tribalist

Ballydoyle hope Henry Longfellow can manage only third in Longchamp’s Group One feature

Henry Longfellow aiming for Group One success in Moulin clash with Notable Speech and Charyn

Frankie Dettori teams up with Ballydoyle trio in hugely lucrative races at Kentucky Downs

City Of Troy skips Irish Champions Festival but remains the name on everyone’s lips

Los Angeles set to join Auguste Rodin and Luxembourg in powerful Ballydoyle squad for Champion Stakes

Irish hopefuls aiming for big money rewards in Kentucky

Ryan Moore back at the Curragh for more promising Ballydoyle juveniles

Coolmore all in on Breeders’ Cup Classic punt for City Of Troy

Aidan O’Brien star City of Troy now joint top-rated horse in the world but has plenty to prove in ‘greatness stakes’

US star Fierceness emerges as Breeders’ Cup danger to City Of Troy after Travers success in Saratoga

Aidan O’Brien planning trip to Southwell and crucial all-weather workout for City Of Troy to enhance his Breeders' Cup prospects

Willie Mullins-trained steeplechase winner keeps Killarney race despite appearing not to jump a fence

Killarney stewards take no action after Arctic Fly crashes through gap between second fence and wing en route to victory

Aidan O’Brien duo Henri Matisse and Bedtime Story impress with Curragh wins

Trainer looks to have strengthened his Classic hand for next season after successful afternoon

Content lands Yorkshire Oaks for landmark success for legendary sire Galileo

Horse became 100th individual Group/Grade One winner for late Coolmore stallion who was euthanised in 2021

Yorkshire Oaks could see Ryan Moore more Content as O’Brien filly bids to hit Group One jackpot

Heavens Gate flies Ballydoyle flag in Lowther Stakes clash with Queen Mary winner Leovanni at York

City Of Troy gets the job done again with Juddmonte International victory in course record time

Ryan Moore guides Aidan O’Brien-trained star City of Troy to length defeat of French rival Calandagan in Juddmonte International at York

Irish Derby hero Los Angeles returns to action in Great Voltigeur Stakes at York

Aidan O’Brien holds massive lead in race to be crowned champion trainer in Britain for a seventh time

York stage looks set to give City Of Troy a chance to finally live up to his massive reputation

Aidan O’Brien-trained star aiming to become sixth horse to complete Epsom Derby-Juddmonte International double

French renaissance has Calandagan on course to lay siege to City Of Troy at York

Wednesday’s 13-runner Juddmonte International Stakes looks set to live up to its billing this year

Whistlejacket secures fifth Prix Morny success for trainer Aidan O’Brien

Jockey Ryan Moore holds off late bid from Rashabar to win Sunday’s feature at Deauville

Ger Lyons hoping Babouche can strike a blow for fillies in Phoenix Stakes

Whistlejacket likely to lead Aidan O’Brien’s attempt at an 18th win in Europe’s first Group One of the season for juveniles

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