Josh Moore is in critical care in hospital as a result of complications from a "serious chest infection."
The rider has received treatment from medics since he suffered a fall at Haydock five days ago. Moore was injured when his mount, Gleno, fell and collided with him at the sixth fence of a veterans' chase. The top sportsman broke his leg and had an operation at Aintree University Hospital.
On Wednesday, the Injured Jockeys' Fund released a statement, which said: "Following his fall at Haydock on Saturday, jockey Josh Moore is in critical care at Aintree University Hospital. After successful surgery to his femur, his recovery has been made complicated by a serious chest infection which has required him to stay sedated on the ventilator and has delayed definitive treatment of his injuries.
