David Mullins will undergo surgery having fractured his collar bone and T12 vertebrae in a fall at Thurles on Thursday.
Mullins took a heavy tumble at the fourth fence from Lean And Kean in the two-and-a-quarter-mile handicap chase won by Stylish Moment.
The following race was delayed by over 30 minutes as the air ambulance was called to transport Mullins to Cork University Hospital.
He was reported to be “alert, speaking and moving all limbs” after being airlifted to Cork University Hospital. On Friday morning the IHRB's senior medical officer Dr Jennifer Pugh confirmed that Mullins was due to have an operation.