Frankie Dettori and Golden Horn: “Frankie’s had a good run with John Gosden and Golden Horn is the best ride he’s got all year,” says the jockey’s agent Ray Cochrane. Photograph: PA Wire.

Frankie Dettori will miss the ride on Aidan O’Brien’s St Leger favourite Bondi Beach at Doncaster due to the start time for Saturday’s Irish Champion (...)

Ruby Walsh has won both races he has ridden on the Gigginstown Stud mare Analifet. Photograph: Morgan Treacy

Willie Mullins sends the top-rated Analifet to Doncaster for a Grade Two hurdle where Ruby Walsh will hope to maintain his unbeaten record on the Gig(...)

  Aidan O’Brien  has entered six in the Racing Post Trophy at Doncaster. Photograph: Getty Images

Aidan O’Brien has six of the 13 entries in the Racing Post Trophy at Doncaster on Saturday.The Ballydoyle handler has won the Doncaster Group One on s(...)

Mahmood Al Zarooni’s Certify will miss the Qipco 1000 Guineas after ‘serious irregularities were found in samples taken from horses in his (Al Zarooni’s) care at Moulton Paddocks, Newmarket’, according to the Godolphin website.  Photograph: PA Wire.

Details of the charges brought by the British Horseracing Authority against trainer Mahmood Al Zarooni, as well as the date of his hearing, are(...)