Ryan Moore takes Theory ride as Martin Dwyer is ruled out for season

Brian Meehan has secured Ryan Moore to ride Theyskens' Theory in Saturday's Meon Valley Stud Fillies' Mile at Ascot after Martin Dwyer was ruled out for the rest of the season.

Dwyer, trainer Meehan's regular rider, broke his left elbow and his right thumb in a fall at Leicester on Monday, opening the door for Moore.

Several high-profile mounts have become available and they do not come much better than Theyskens' Theory, who became the favourite for next year's 1000 Guineas by winning the Prestige Stakes at Goodwood.

"Martin's injury means that riding plans for our horses in the major races at Ascot have been revised," said Meehan. "Richard Hughes will ride Happy Today in the Juddmonte Royal Lodge Stakes on Saturday and Lady of the Desert in Sunday's Diadem Stakes.

"Ryan comes in for the ride on Theyskens' Theory in the Meon Valley Stud Fillies' Mile on Saturday.

"Martin has been an integral part in this season's success for the stable and in addition has done an excellent job in the preparation of the Manton horses on the home gallops. We all wish him a speedy recovery."

Titus Mills is another from the stable engaged in the Royal Lodge but Meehan has yet to announce a jockey booking as he is not a definite runner.

"He has been left in the race and Brian was planning to give him a spin up the gallops later in the week and make his mind up then," said Ben Sangster, who owns the two-year-old.