Champion Flat jockey Jim Crowley was released from hospital yesterday evening but fellow rider Frederik Tylicki was in a "stable" condition in intensive care following a four-horse incident at Kempton that led to the meeting being abandoned.
Crowley (pictured) and Tylicki were unshipped from their mounts in the Breeders Backing Racing EBF Maiden Fillies' Stakes, along with fellow riders Ted Durcan and Steve Drowne.
While the latter pair walked away from the incident, Crowley and Tylicki were taken to hospital in Tooting with suspected spinal injuries.
The Injured Jockeys Fund later announced Crowley had been allowed home, and that Tylicki remained in intensive care but was conscious.
A statement said: "Following the incident at Kempton Park racecourse this afternoon, jockey Jim Crowley has been discharged from St George's Hospital, Tooting, to return home with his family.
"Freddy Tylicki, also involved in the incident, is in intensive care in a stable condition.
"He is conscious and there will be a further update tomorrow (Tuesday) once more is known."
The accident occurred as the field rounded the home turn in the one-mile heat, the third race on the card.
Nellie Deen was tracking the pacesetting Madame Butterfly in the hands of Tylicki when the pair suffered a heavy fall.
Crowley and Electrify were racing immediately behind and were brought down, as was Drowne's mount Skara Mae.
Durcan was also caught up in the melee and was unseated from Sovrano Dolce.
Tylicki and Crowley were attended to on the track for some time before being taken to the major trauma unit in Tooting, with Tylicki travelling by air ambulance.
With racing having already been delayed for over an hour, the decision was made to abandon the remaining four races.