Librettist will put his Breeders' Cup Mile credentials on the line in the $385,000 Prix du Moulin de Longchamp on Sunday. The winner of the Prix Jacques le Marois at Deauville last month, he has been selected by his owner, Godolphin, for the Group 1 mile instead of its other Breeders' Cup Mile hopeful, Ifraaj, who skipped Saturday's Haydock Park Sprint Cup because of the same soft ground that he would also have encountered in the Moulin.