Frankie Dettori has been ruled out for the season and subsequently misses the ride on Treve in Sunday’s Prix de l’Arc de Triomphe, according to the jockey’s business manager Peter Burrell.
The Italian jockey was unshipped from Eland Ally prior to the 32Red.com Handicap at Nottingham and was stood down for the rest of the day.
Although an initial on-course prognosis suggested he had suffered only soft-tissue damage around his ankle, X-rays subsequently revealed a break.
Dettori was due to partner leading Prix de l’Arc de Triomphe fancy Treve at Longchamp on Sunday.
Thierry Jarnet will now take the ride.
Burrell said: “It’s bad news, not good news. He went to Cambridge Hospital and X-rays found that he had suffered a fractured ankle. He was extremely disappointed on the phone and did not want to discuss it much more than that.
“It’s an extremely painful injury. Sunday is out - as is the season.”
The unbeaten Treve will now be ridden by Jarnet, who rode the filly to victory on her first three races before she was sold to Dettori’s new boss, Sheikh Joaan Al Thani.
Trainer Criquette Head-Maarek said: “I have just spoken to Frankie and I have just spoken to Sheikh Joaan, who has agreed that Thierry Jarnet will ride Treve on Sunday. He knows the filly very well and won the Prix de Diane (French Oaks at Chantilly) on her in June. It is bad luck for Frankie, but that is life in racing.”