scratches and changes

G2 Coventry S. winner River Tiber (Ire) (Wootton Bassett {GB}) has been scratched from the GI Breeders' Cup Juvenile Turf after withdrawals were posted by Santa Anita on Friday morning California time. The Coolmore partners' runner won his first three starts and had been the 3-1 morning line favourite for Friday's contest. He also finished third to Vandeek (GB) (Havana Grey {GB}) in both the G1 Prix Morny and G1 Middle Park S. and looked primed for a big effort. River Tiber was due to be ridden by Ryan Moore....