Ante-post favourites Tarnawa and Adayar head 15 declarations for Sunday's Qatar Prix de l'Arc de Triomphe at Longchamp.
The pair have been battling it out at the top of the market all week, with Charlie Appleby's Derby and King George hero Adayar supplemented for the race on Wednesday at a cost of €120,000.
The Dermot Weld-trained Tarnawa, winner of last year's Breeders' Cup Turf, has long been towards the head of the market and she will team up with Christophe Soumillon for the first time this season on Sunday.
Tarnawa has been drawn in stall three, while Adayar will occupy stall 11.
Appleby's Irish Derby and St Leger hero Hurricane Lane, given stall two, is another key player along with the Aidan O'Brien-trained Snowfall, winner of the English and Irish Oaks, and also supplemented for the race. She will start from gate nine.
O'Brien also runs Broome (stall seven) and last year's star filly Love (four), with William Haggas' Alenquer (eight) and the Richard Hannon-trained Mojo Star (one) completing the British and Irish challenge.
Teona was the only withdrawal the final declaration stage, with Japan double-handed via Chrono Genesis (14) and Deep Bond (five) while Raabihah (15) leads the home defence.
