The County Waterford handler has had plenty of top-class horses pass through his hands during his career, but described this juvenile as the best he has ever trained after he won at the third time of asking at Naas in early August.
He was beaten into second when favourite for a Tipperary nursery on his next appearance but posted a career-best when beaten by only leading two-year-old Dawn Approach in the National Stakes at the Curragh earlier this month.
Flynn admits it is with a heavy heart that he has accepted an offer from abroad for his pride and joy, who he owned as well as trained, but feels it was just too good an offer to turn down.
Flynn said: “The news is the horse has been sold to race in Hong Kong.
“He’s a fantastic horse and we’re obviously disappointed to let him go, but I’d like to thank everyone who has been involved with him while he has been with us, including Moyglare Stud who bred him then sold him to us.
“He was bought by Peter Doyle Bloodstock for owners in Hong Kong and it’s very exciting for his new connections. I wish them the best of luck and I think they are getting a very serious horse.
“Anyone who wants to follow his progress in Hong Kong can do so on my website (www.patflynnracing.com).
“I bought another two horses yesterday and I just hope we can find another one as good as him now.”
Dawn Approach meanwhile features among 36 remaining entries for the Dubai Dewhurst Stakes at Newmarket on October 13.
The unbeaten Jim Bolger-trained colt took his perfect record to five with an impressive success at the Curragh in the Vincent O’Brien Stakes.
Bolger, triumphant in four of the last six runnings of the race, has also left in promising maiden victor Trading Leather as well as Leitir Mor.
Two-time Dewhurst winner Aidan O’Brien has a mammoth 13 possibles, among them Eye Of The Storm, Cristoforo Colombo and The Ferryman.
Haynes, Hanson & Clark winner Wentworth is part of a strong hand for Richard Hannon which also includes Havana Gold and Toronado.
Dundonnell (Roger Charlton) and Ashdan (John Gosden) could carry the Khalid Abdullah silks successful with Frankel two years ago, while Marco Botti has left in striking Mill Reef winner Moohaajim.
Exciting bumper horse Moscow Mannon is likely to start off his career over hurdles at Down Royal in early November.
Having won three of his first four starts in National Hunt Flat events, the six-year-old lined up in the Champion Bumper at the Cheltenham Festival as a leading contender.
He ran a superb race to finish fourth, beaten five and a half lengths, and trainer Brian Hamilton is excited about seeing his stable star go jumping this season.
“All is going according to plan at the moment and we’re aiming towards a maiden hurdle at the Down Royal Festival, which is on November 2 and 3,” said Hamilton.
“He did his first piece of work on Saturday, which went very well, and this is an exciting time of year.
“We could be a bit deflated come January time, but you’ve got to keep positive and I’m delighted with how the horse has done over the summer.
“He was a strong horse before, but he’s a bull of a horse now and I think he’s improved immensely.
“I’m glad I didn’t keep going with him after Cheltenham, I think that’s done him a lot of good, and hopefully he can carry on doing well when he starts over hurdles.
“The Down Royal race is two miles, so we’ll see how he gets on there, but I think he’s a horse who’ll want a trip in time.”
“If all went well in Down Royal, then something like the Royal Bond in Fairyhouse would be a target, but that’s if things fall into place as we hope, which more often than not they don’t.”
Former amateur Declan Lavery has been ever-present in the saddle during Moscow Mannon’s short career to date and having turned professional, is likely to retain the mount over obstacles.
“As far as I know Declan will keep the ride on him. He’s turned pro now and the owner is keen to keep the partnership intact and that’s fine by me,” said Hamilton.
* Replacement meetings have been announced by Horseracing Ireland at Tipperary (October 8), Tramore (October 12), Roscommon (October 15) and Fairyhouse (October 23).