Brian O'Connell will replace the injured Robbie McNamara aboard Lord Windermere in the Crabbie's Grand National at Aintree.
The jockey steps in for the ride aboard the 2014 Cheltenham Gold Cup winner after McNamara sustained chest, abdominal and spinal injuries from a fall at Wexford on Friday.
O'Connell has previously ridden Tharawaat to finish eighth and last year was on board Quito De La Roque, who pulled up at the 21st fence.