Sussex-based handler David Menuisier enjoyed a happy homecoming as Sunway upset highly-regarded French juvenile Alcantor in the Group One Criterium International at Saint-Cloud.

Oisin Murphy made good use of Sunway throughout the mile contest and forged ahead of Aidan O’Brien’s front-runner Navy Seal two furlongs out.

Andre Fabre’s odds-on favourite Alcantor and Mickael Barzalona threw down a strong challenge in the latter stages, but Murphy had left a bit up his sleeve and the 43-10 chance galloped on strongly up the favoured stands side.

French-born Menuisier, who began his career as assistant to Criquette Head-Maarek in Chantilly, tasted success at the top level with Wonderful Tonight at ParisLongchamp and on British Champions Day at Ascot three years ago and was delighted to enjoy another big win.

“Everything went according to plan,” said the trainer. “We wanted him to be up there in second or third, Oisin was able to give him a breather turning for home and then when he asked him to go, he really kicked on.”

Sunway impressed when making a winning debut at Sandown and bounced back from a below-par effort in a hot race at Ascot to split Iberian and subsequent Prix Jean-Luc Lagardere scorer Rosallion in the Champagne Stakes at Doncaster.

“He’s a very good horse, he ran well in the Champagne and Oisin really struggled to pull him up after the line that day, so we knew he would stay on well.

“It’s fantastic to have another Group One win and I’m also grateful and so happy for his breeder Guy Pariente, who has supported us and given us a real boost.

“One thing at a time, so we’ll enjoy this victory, but we can now go into the winter dreaming about what might happen next season.”

The son of Galiway, who is co-owned by Pariente, Thomas Lines and Qatar Racing, was cut to as short as 14-1 from 40-1 with Paddy Power for next year’s Qipco 2000 Guineas and introduced into their Derby betting at 33-1.

Winning jockey Murphy told Sky Sports Racing: “He was very relaxed and he’s trained really well into this.

“He won on debut at Sandown, disappointed at Ascot, I don’t know what went wrong, nothing came to light, then he freshened up and ran very well at Doncaster over a trip short of his best.

“Today, he was perfect. I was quietly confident and it’s great because Guy Pariente bred him, he owned the mare and the stallion, Sheikh Fahad and Qatar Racing bought into the horse and Thomas Lines is also involved.

“And it’s also great for David Menuisier, who thought he was very good from early on and today he was brilliant.

“I had a high opinion of him and obviously recommended him plenty and was glad he was able to do that. They have to have the mind to do that and he most certainly does.

“He has a bright future. The rail helped but I’ve no doubt I was on the best horse and the runner-up is a good horse as well.

“He’ll stay further, he’s a brother of (Champion Stakes winner) Sealiway, whose distance was probably 10 furlongs, and I’ve no doubt this fellow will go a furlong or two more.”

Menuisier and Murphy teamed up again to land the Group Three Prix Belle De Nuit when Caius Chorister made all in fine fashion over a mile and six furlongs at 47-10.

Colourful winning owner Clive Washbourn declared: “What a day for David. It’s absolutely fantastic.

“I bred this girl and her dam Corpus Chorister is still the two-mile record holder at Beverley. Next year, she’ll take all the beating in the (Ascot) Gold Cup and the King will have to put up with my celebrations!”

Washbourn is now hoping Menuisier can provide him with a Group One success in Saturday’s Kameko Futurity Trophy Stakes at Doncaster via Devil’s Point.

“I went up to his yard to drop off some champagne at Christmas and he pointed to a horse and said, ‘this is a machine’, and it was Sunway, who was brilliant today,” added Washbourn.

“But then I bought a horse called Devil’s Point and he said they were quite good together.

“We were beaten by today’s second Alcantor here in a Group Three, but next Saturday, if you think this is a celebration, when we do everyone in the Futurity, which we will, the celebrations are going to be huge.”