Aidan O'Brien unleashed another smart youngster with Royal Ascot potential as Caravaggio obliged in the Irish Stallion Farms European Breeders Fund Maiden at Dundalk.

The Ballydoyle two-year-olds have hit the ground running in the opening weeks of the new season and the 1-3 favourite looked a smart horse in the making as he readily landed the odds, despite obvious signs of greenness.

O'Brien has now won with three of his four juveniles this year - the one that was beaten ran in a race taken by a stablemate - and this son of Scat Daddy is clearly near the top of the early pecking order judging by his length-and-three-quarters defeat of fellow Ballydoyle runner Lundy.

O'Brien's son and assistant Joseph said: "They are two nice horses and the winner could be a bit special.

"The Scat Daddy is very fast and Dad thinks an awful lot of him. Probably Royal Ascot is high on the agenda.

"He looks the real deal, I think. Everyone that has sat on him has loved him and he didn't disappoint today.

"He was green, but it's his first day away and he's never been round a bend, either."

Winning rider Seamus Heffernan said: "Aidan said he was a nice horse and it's nice to go to the track and do it first time.

"He was a little bit green. He's a grand horse and won well."

The O'Brien team suffered a surprise reverse when Sir Isaac Newton could only manage a laboured second to Yuften in the Dundalk Stadium Race.

Supported down to 2-5 favouritism, the well-regarded four-year-old settled in rear before making his move, only to flatter to deceive once more.

In contrast Yuften (11-4), who travelled just as sweetly as the market leader, quickened smartly when Connor King pressed the button and strolled four-and-three-quarter lengths clear of Sir Isaac Newton, going one better than he did on his debut for Johnny Murtagh here last month.

Murtagh said of the former William Haggas-trained five-year-old: "We think he's good and his form is good. He's starting to settle into the place now and hopefully we can get him back to somewhere near his best.

"I'm not sure of his trip and we have to decide whether to come back or go up in trip. We have to find out a bit more about him and we're learning all the time.

"It's nice to have that standard of horse in the yard and it keeps you up there on the Saturdays.

"He's in the Greenlands and the Amethyst. Those are the two and we have to decide which way to go."

Sir Isaac Newton's defeat proved just a blip on the night for O'Brien, with Seventh Heaven and Bravery obliging at odds on, before Stone Mountain dead-heated with Spruce Meadow.

Bravery's success in the Hen & Stag Packages (C & G) Maiden as the 1-2 favourite could have earned the Galileo colt a Classic tilt.

Joseph O'Brien said: "He had a good run last year and had a nice start at the Curragh in very bad ground. He ran a nice race there, as he was a bit keen.

"He'll step up in class now and could go for the Irish Guineas or a Derby Trial. I'd say there is a good chance he'll run in the Irish Guineas.

"He doesn't need a mile and a half but he might get it."

He added of Light Up Your Night Fillies Maiden scorer Seventh Heaven (9-10 favourite): "She's a lovely filly. She was weak last year and obviously won nicely today.

"I think the Musidora or the Blue Wind might be the plan for her.

"She'll be better stepping up in trip and probably good ground is important to her."