O'Brien happy with Camelot Camelot remains firmly on track to bid to become the first horse since Nijinsky to complete the Triple Crown next month. The Ladbrokes St Leger has been the target for the unbeaten colt ever since he added the Irish Derby to his wins in the English equivalent and 2000 Guineas at Newmarket. Trainer Aidan O'Brien said on Tuesday: "We're happy with him. Everything's gone well since the Curragh and it's a case of so far - so good. "We were very worried about the ground for the Irish Derby. He's a beautifully-actioned horse and we had to hope he'd get away with it. He cruised around and Joseph said when he asked him to quicken he jinked a bit because the ground was very heavy but he won easily."