George Scott has revealed that Caballo De Mar will take his chance in the Prix Royal-Oak at Saint-Cloud on Sunday having been supplemented on Thursday morning.

Now owned by Victorious Forever having been purchased from the Blue Star Racing Syndicate for a private fee, Caballo De Mar has been one of the stories of the season in the staying division, progressing through the handicap ranks before providing his trainer George Scott with a breakthrough Group 1 European success in the Prix du Cadran at Longchamp on Arc weekend.

"He's been supplemented for the Prix Royal-Oak and we're looking forward to it," said Scott. "He worked great on Friday morning and is in really good shape."

The son of Phoenix Of Spain will make up a probable field of seven, which features the two-time reigning champion Double Major, fellow British raider Sunway, Aidan O'Brien's Queenstown, Sevenna's Knight and the interesting Arrow Eagle, who will step up significantly in distance having finished sixth in the Qatar Prix de l'Arc de Triomphe earlier in the month.

Scott added: "There's a very good Gleneagles horse (Arrow Eagle) in there who finished sixth in the Arc – running on – so he's definitely going to be a threat. He's won two Group 2's this year and is trained by the master Rouget.

"He's going to be a stern test and then you've got Double Major who has won it twice in a row.

"Our horse is so tough though. He doesn't seem to be feeling the effects of last time. Hopefully they get a bit of rain because we want it a test, we're going to have to make it a test for Arrow Eagle because he's a good horse.

"We'll go and put plenty of pressure on I think but we'll see what Tom (Marquand) thinks."