Deauville's spectacular summer meeting explodes into life on the coast of Normandy on Tuesday, with the fillies and mares taking centre stage in the Group One Prix Rothschild, a race which features runners from the yards of Aidan O'Brien, Jessica Harrington and Sheila Lavery.

O'Brien's Mother Earth, who was also the heroine of the 1000 Guineas in May and runner-up in the French equivalent, heads the market.

There was just a quarter of a length between Harrington's No Speak Alexander and Lavery's big outsider Belle Image in the Irish Guineas at the end of May, with No Speak Alexander getting the better of Belle Image in the battle for third.

Ed Walker is anticipating a bold show from "massively exciting" Primo Bacio as she bids to further enhance the outstanding form of this year's Falmouth Stakes.

Alcohol Free and Lady Bowthorpe – the two fillies who finished directly, and less than a length, in front of Primo Bacio at Newmarket – both augmented their Group One CVs with victory at Goodwood last week.

Mother Earth finished just a length ahead of Primo Bacio when they last met.

Lambourn trainer Walker has described the Newmarket race as the "hottest renewal of the Falmouth in history" and he has no doubt his filly is worthy of her place in a 14-strong edition of the feature race.

He said: "I’m very hopeful. She’s only had three runs this year, and the only time she had an uninterrupted passage she absolutely trotted up.

"She is massively exciting, and she’s in great form."

A strong home contingent includes Francis Henri-Graffard’s prolific winner Padovana, Jean-Claude Rouget’s French Guineas heroine Coeursamba and Pascal Bary’s Tahlie, who is seeking a fifth successive victory.

German mare Axana is in the reckoning as well, while the British challenge also comprises of Parent’s Prayer for Archie Watson.

Primo Bacio will be having just the fourth start of her three-year-old season, having outrun huge odds to be a close fourth to Alcohol Free on her return at Newbury in April and then won emphatically in Listed company at York.

Walker added: "We haven’t had to do a lot with her since the Falmouth to keep her happy and well.

"This year, we seem to have found the hottest renewal of the Falmouth in history.

"It’s unbelievable really – the Sussex winner, the Nassau winner – and we were only beaten a length and a half, with an interrupted passage (in running).

"We’ve got to turn the form round with Mother Earth – which I wouldn’t bet against her doing.

"We’re just hoping we have a smooth trip, and if she does I think she’ll be bang there."

Primo Bacio, who will again be ridden by Andrea Atzeni in France, was a late absentee in the Coronation Stakes after a deluge at Royal Ascot turned the ground heavy.