O'Brien duo head Trophy field

Aidan O’Brien will be double-handed in Saturday’s Racing Post Trophy with Magritte and Mikado in a six-strong line-up as he bids to win the Doncaster Group One contest for the third year running.

High Chaparral in 2001 and Brian Boru last year did the business for the Ballydoyle trainer and both horses went on to record Classic victories the following season.