Australia (Joseph O’Brien) lands the Dubai Duty Free Irish Derby at the Curragh in June.

Only once in the Juddmonte International’s illustrious history has an English-Irish Derby winner emerged best in York’s Ebor Festival showpiece but 3(...)

Joseph O’Brien will again be in the saddle on Australia for Wednesday’s Juddmonte International at York. Photograph: Morgan Treacy/Inpho

Aidan O’Brien’s dual Derby hero Australia will face five rivals in the Juddmonte International at York on Wednesday.Since being narrowly beaten into t(...)

Magician is suited by “quick ground” according to his jockey Joseph O’Brien. Photograph: Ryan Byrne/Inpho

Joseph O’Brien feels Magician has plenty going for him as he seeks a second major success in America tonight. The Aidan O’Brien-trained four-year-old (...)

Rory McIlroy hits off the 14th tee during the first round of the World Golf Championships-Bridgestone Invitational at Firestone. Photograph: Sam Greenwood/Getty Images

The familiar spring was still in his step as he marched towards the scorers’ hut, with a one-under par round of 69 safely banked on his return to work(...)

Dermot Weld: Saddles Sparkle Factor in the Cairn Rouge Stakes. Photograph: Donall Farmer/Inpho

Original expectations for Palace probably didn’t include the Listed feature on the opening session of Killarney’s July festival but Aidan O’Brien’s f(...)

Verrazano and War Command (pictured) will fly the Ballydoyle flag in this afternoon’s Eclipse at Sandown. Photograph:   Alan Crowhurst/Getty Images

Aidan O’Brien’s trans-Atlantic reach this weekend could see him double his Group One tally for the season with top-flight hopes from New York to Sa(...)

Ryan Moore: reportedly in line for mount on Verrazano. Photograph: Steve Parsons/PA Wire

Aidan O’Brien may have already won three classics and an Ascot Gold Cup so far in 2014 but his belief that the massive Ballydoyle string is only no(...)

Slade Power (centre in red and white) and  Wayne Lordan  win the Diamond Jubilee Stakes at  Royal Ascot. Photograph: Steve Parsons/PA

Eddie Lynam secured a remarkable sprint double at Royal Ascot after Slade Power stylishly claimed the Diamond Jubilee Stakes.The Irish handler hit the(...)

Bracelet ridden by Joseph O’Brien before winning the Ribblesdale Stakes during Day Three of the 2014 Royal Ascot Meeting at Ascot. Photograph: Steve Parsons/PA Wire

Bracelet bounced back from her disappointing display in last month’s Qipco 1000 Guineas to give Aidan and Joseph O’Brien victory in the Ribblesdale St(...)

Sole Power ridden by Richard Hughes stretches away from the field to win the King’s Stand Stakes during day one of Royal Ascot. Photograph: David Davies/PA

Sole Power’s devastating acceleration came to the fore once again as the brilliant sprinter secured back-to-back victories in the King’s Stand Stakes (...)