Katie Walsh will ride Wonderful Charm for champion trainer Paul Nicholls in the St James's Place Foxhunter Chase at Cheltenham next month.
Nicholls explains on his Betfair Blog: "We needed a new jockey for the horse as Will Biddick, who has won on him twice recently, rides Ask The Weatherman as he has commitments to the stable of his trainer Jack Barber.
"With Will unavailable for Wonderful Charm we were keen to secure a top amateur and Katie Walsh certainly fits the bill.
"We enjoyed no end of success at Cheltenham with Ruby Walsh and I am hoping his sister Katie can provide a bit more on Wonderful Charm.
"In addition Bryony Frost will partner Pacha Du Polder, my other runner in the race."
Wonderful Charm is a 9/2 chance with Sky Bet, non-runner no bet.
