Hollie Doyle blog: Backing Pierre Bonnard to bag 10th Leger for Aidan O'Brien at Doncaster
Aidan O'Brien seeks a 10th St Leger title at Doncaster on Saturday, running four of the 11 runners, including the well-fancied Christmas Day and Pierre Bonnard; Hollie Doyle backing husband Tom Marquand to win Group Two Park Stakes (2.55)