France’s former champion apprentice was injured in a four horse spill during a race at Le Croise-Laroche racecourse in Marcq-en-Baroeul, a suburb of Lille.
Ex-jockey has died aged 48; he rode more than 1,200 winners in Italy before working in Newmarket.
Doyle, who secured joint third place in the contest won by Zac Purton last year, will represent Britain alongside her boyfriend Tom Marquand.
The conqueror of Melbourne Cup winner Verry Elleegant in three of their four Sydney head-to-heads has spent the past two weeks in hospital.
Pyledriver dropped in class and distance to capture 1m2f Listed Churchill Stakes at Lingfield by half a length.
Invitations have been accepted on behalf of both Broome and Aidan O’Brien-trained stablemate Japan to run in the ¥648 million (£4.25m) contest on November 28.
The five-year-old stayer will continue his career with Peter Moody in Australia after Brae Sokolski completed a deal to buy him from his US owners.
Aussie supermare’s part-owner Brae Sokolski keen on visit to Europe next year – while Japan Cup a possible target for Incentivise.