Jockey Bryony Frost, one of the stars of last week's Cheltenham Festival, will see a shoulder specialist after a fall at Southwell racecourse on Monday.
The 23-year-old, who won onboard Frodon in Cheltenham's Ryanair Chase, was taken to hospital for a precautionary X-ray on her shoulder after a fall from Midnight Bliss.
Frost is out of hospital and will see a specialist in Cardiff on Wednesday.
She had been due to ride at Huntingdon on Tuesday.
Read more from Bryony Frost in her latest BBC Sport column as she describes the "perfect" race in the Ryanair Chase, not realising she had made history, the "cool" media coverage, celebrating at a service station and hopes for next year.