Moore set to conduct Orchestra bid

Aidan O'Brien believes there is a "big chance" Ryan Moore will keep the ride on Chester Vase hero Orchestra in the Investec Derby at Epsom.

The Galileo colt justified favouritism with a narrow victory on the Roodee last week and looks set to join stable companion and hot favourite Australia at Epsom on June 7, with O'Brien expecting considerable improvement.

"We were happy with him. He travelled well and was just ready to start," said the trainer.

"Ryan said when he got the gap he had to go, around Chester, but ideally he would have waited longer as he needed the run. He quickened but got tired.

"The way he travelled he should have no problem with Epsom and Ryan was happy with him.

"There is a big chance Ryan will ride at Epsom."

Orchestra could be part of a significant Ballydoyle supporting cast to Australia on the Downs.

Last year's Beresford Stakes winner Geoffrey Chaucer could be counted a little unlucky when third on his return to action in the Derrinstown Stud Derby Trial at Leopardstown and could now head to Epsom.

Mekong River was unable to cement his Derby claims in the Lingfield Derby Trial on Saturday, but his disappointing run is easily explained by his trainer.

O'Brien said: "Lingfield was a disaster. The blinkers slipped down over his eyes and you could see halfway through the race he started stepping as he couldn't see."

Reflecting on Geoffrey Chaucer's Leopardstown return, O'Brien said: "They walked first of all at and then it was bumping cars in the straight. It was just a pity.

"You're happy enough when you get beat if you learn something but nobody learned anything.

"We are very happy with him. He's doing everything very well. We've got four weeks now and he got a day out.

"There was plenty of hustle and bustle and he won't get that at Epsom."

Perhaps the last of the significant Derby trials takes place at York on Thursday, with Table Rock O'Brien's only entry.

However, he appears unlikely to make the trip to the Knavesmire and is not entered at Epsom.

O'Brien said: "I'm not sure if he'll run in the Dante as it looks like it will be soft ground.

"Some of the other trial races often suit us better as they are a bit further out."

Having saddled four previous winners of the Epsom Classic in Galileo (2001), High Chaparral (2002), Camelot (2012) and last year's hero Ruler Of The World, O'Brien is better placed than most to assess what is required to win the race.

He said: "It's the hardest race for a thoroughbred to win. It takes speed, staying and you have to adapt to tactics and the undulations. It's the ultimate test.

"Some horses don't survive it and don't do anything after.

"It's like the Olympics. You have to have a go with the Classic generation - it's what the breed is all about."