Dettori rode three winners over the two days at ParisLongchamp – but also collected a total of six days in suspensions.
Takashi Saito said the workout in Chantilly had gone exactly to plan as the finishing touches were applied to Japan’s leading hope for the 100th edition of Europe’s richest race.
Love had been the long-time favourite for the 2020 Arc when O’Brien decided not to declare the filly because the going at ParisLongchamp was heavy.
Piechulek, 34, has been checking the weather forecast daily and has been encouraged by the outlook ahead of his debut in Europe’s richest turf race.
Japanese legend has been offered the mount on one of the two Aidan O’Brien-trained horses, in which Masaaki Matsushima owns shares.
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After beating German Derby winner Sisfahan, reigning horse of the year will bid to become his nation’s third winner of the Paris showpiece.
The news was announced by owners Sunday Racing as they confirmed the five-year-old mare would take her chance at ParisLongchamp on October 3.