Culloty to take freelance role next season
The 32-year-old has been on the sidelines since hurting his arm in a fall at Cheltenham last month and is expected to operate as a freelance in the future.
Miss Knight's husband and assistant Terry Biddlecombe said: "We won't be using a stable jockey next eason. We don't want to stand in Jim's way if he wants to take more rides.