Dettori hopeful for Rio´s St James´ bid Frankie Dettori is hoping Rio De La Plata will be fit to take his chance in the St James´s Palace Stakes at Royal Ascot next week. Dettori reported that the French 2000 Guineas runner-up was a little tender after pulling off a shoe in the Vodafone Derby in which he finished seventh behind New Approach. "He pulled a shoe off coming out of the stalls which didn´t help," said Dettori. "At the back of my mind we always thought he was a doubtful stayer. But we tried, he ran a good race and he took me to the two-furlong marker. "He was a bit tender on his foot after the Derby but hopefully he´ll come back for the St James´s Palace. "Henrythenavigator is a worthy favourite, but Rio has got to take his chance and why not. "He´s a good horse, he ran very well in France and I´ve got high hopes for him."