Valencha has been promoted into the starting line-up for the Buckingham Palace Stakes at Royal Ascot on Friday.
The Hughie Morrison-trained five-year-old had been first reserve for the seven-furlong handicap, but gets the chance to shine following the withdrawal of Excellent Guest.
Excellent Guest finished second in the Royal Hunt Cup on Wednesday, but was declared a non-runner for the Buckingham Palace after not eating up overnight.
Ducal and Norse Blues, the respective second and third reserves, have now been eliminated.
