Frankie Dettori finally gets to put his potential Prix de l'Arc de Triomphe mount Treve through her paces on the racecourse during a glittering afternoon of trials at Longchamp on Sunday.

Criquette Head-Maarek's unbeaten filly is one of the shiniest jewels in the Italian's arrangement with Sheikh Joaan bin Hamad Al Thani, and he has already been to Chantilly to get acquainted.

Treve has only run three times so far, but graduated to Classic honours in the Prix de Diane and will be a leading contender for the Group One Prix Vermeille.

"Everything has gone well since the Prix de Diane, she worked very well with Frankie Dettori on board two weeks ago. He liked her, and said she has got a great turn of foot," said Head-Maarek.

"We'll see on Sunday. If she wins, or runs well, we might then go for the Arc. It is raining here, but I don't like to make excuses as I think a horse can win on every ground if they are good enough.

"She won on soft ground as a two-year-old, and I don't think it will be too bad.

"She has a good draw in stall three. She's a very easy filly to train, she's like a little bicycle - you can put her anywhere you want."