Frankie Dettori will don the Juddmonte silks when he makes his final British Classic appearance aboard Arrest in Doncaster’s Betfred St Leger.

The Italian has won the Town Moor showpiece six times throughout his career and struck in the colours of the Abdullah family with Logician in 2019.

Dettori was expected to partner his Royal Ascot winner Gregory in his last shot at Classic glory, but made a late switch to the John and Thady Gosden-trained stablemate after a wet week in South Yorkshire.

And it could be somewhat fitting that he bows out for connections who have provided him with some of the biggest victories in his career.

“Any time Frankie is on board is great and I suppose the association he has had with Juddmonte over the years has been so strong and we’ve had so many big days together that we can hopefully dream of another on Saturday,” said Barry Mahon, European racing manager for the owner.

“It would be special and it’s a hot race, it’s certainly hard to dismiss much in the race. They are all of a similar level and it’s definitely quality over quantity.”

The race offers Arrest the chance for Classic redemption having fluffed his lines when sent off favourite in the hands of Dettori in his final Derby at Epsom earlier in the summer.

However, connections believe they made the wrong decision to run the son of Frankel on quick ground during the height of summer and are hopeful their high-class colt will stay the stamina-sapping one-mile-six-furlong trip in his preferred ground.

Mahon added: “In fairness to the horse, his record is pretty solid and we made two bad calls with the horse running him on good to firm ground at Epsom and Ascot. To be fair they were two big races and big meetings and we just made the wrong call and we’ve learned from that.

“We know he likes an ease in the ground and if you forget those two runs, then his record is pretty outstanding.

“It’s like everything, until you try it, you don’t know 100 per cent (if Arrest will stay). But it didn’t look like he was stopping at the end of the Geoffrey Freer, so you would have to think he will be fine over it. Over a mile and five and a half at Newbury he looked comfortable enough, so we just have to be hopeful he gets the extra furlong.”

Arrest is one of three for the Gosdens alongside Gregory and Middle Earth as the Clarehaven team seeks a second British Classic of the campaign.

Kieran Shoemark takes the ride on Gregory, who although tasting defeat for the first time in the Great Voltigeur, showed his liking for this trip when winning the Queen’s Vase at the Royal meeting before that.

“He’s got a great mind and he is a pretty laid-back character,” said John Gosden.

“I trained both the mother and father and he’s inherited all the good traits of their mental attitude towards racing.

“We gave him all the time he required and he’s done nothing but shine this year. I think he’ll enjoy the distance, although we are perfectly aware it looks like being a vintage St Leger.”

Middle Earth was supplemented into the contest by owners Qatar Racing having proven his class in York’s Melrose Stakes and the mount of Oisin Murphy ticks plenty of boxes despite stepping up markedly in class.

Gosden added: “He’s proven he stays the trip, which let me tell you, the one mile, six furlongs and a few yards, it is a long straight, it tests the tactical speed and the stamina. He looks like he should be able to answer those two calls.

“If you’d won a handicap in the style he did at York, that was a tougher race than some of the trials. If you’ve got the right horse at the right time and he handles the ground, then he has every right to be there.”

While the Gosdens field a team of three, there will be four from Aidan O’Brien’s all-conquering Ballydoyle string, including Continuous who lowered the colours of Gregory at York last month.

He is the mount of Ryan Moore and is joined by Bahrain Trophy runner-up Tower Of London, Alexandroupolis and Denmark as the handler searches for his sixth win the race.

O’Brien said: “Continuous is very well. He came out of York very well. He’s a horse that has class and you can take your time with over a mile and six (furlongs).

“Tower Of London just got beat at Newmarket. He will get the trip, he’s a brother to Capri. He handles good ground and we’re very happy with him.

“Alexandroupolis was second in a Derby Trial and then suffered a setback. We’ve always liked him and think he’s come forward plenty from his last run, but will probably come forward more after this.”

Godolphin are no strangers to success in this contest and their hopes are carried by Simon and Ed Crisford’s Chesspiece, who was only a neck behind the reopposing Desert Hero in the Gordon Stakes at Goodwood and will relish the extra two furlongs.

“It’s a big day and he’s done well progressing this season,” said Ed Crisford.

“It’s a tough race, the St Leger, and there’s some good horses in it and he has a few lengths to make up on those higher-rated horses, but he wants every yard of the trip and it looks like being suitable ground for him.

“If he can improve a little bit, I’m sure he will be in the mix.”

Chesspiece’s training team recently celebrated their first Group One success when landing the Prix Morny and now look to quickly follow up in one of the oldest races on the calendar.

Crisford added: “It’s exciting to be a part of the Leger, it is always a great race and to have a horse with a bit of a squeak is great.

“You will have to really stay well in the Leger – I think our fella will stay well and I think with the softer conditions, it will be a grinding sort of race. He’s there with a chance for sure.”