Top sprinter Highfield Princess will not return to training and has been retired after sustaining a significant injury.

The seven-year-old has been the apple of trainer John Quinn’s eye for the past few seasons, enjoying an astonishing rise from the handicap ranks to a string of Group successes.

The bay has 14 victories on her CV, including the Prix de l’Abbaye, Flying Five, Nunthorpe and Prix Maurice de Gheest – all Group One events.

She was also second in the Nunthorpe and the King’s Stand by just a length apiece last season and amassed over £1.8million in prize money throughout her career.

Connections had intended to keep her in training for another season but she suffered a serious injury in her stable on Tuesday and has therefore been retired.

A statement from John and Sean Quinn read: “It is with sadness that we announce that our star mare Highfield Princess has been retired from racing with immediate effect.

“On Tuesday morning she suffered an injury in her stable that was at the time very serious and concerning. That morning she was transferred to Rainbow Equine Hospital and has been in their care ever since.

“Her progress over the past few days has been encouraging and whilst she still has a way to go to make a full recovery, we are hopeful that with time and care she will be OK.

“What she has done for our yard over the past four seasons has been nothing short of remarkable. From humble beginnings she climbed to the very top of the sprinting ladder to be crowned European Champion Sprinter in 2022.

“She was the gift that kept on giving. As a racehorse she was always there for us when we needed it and now it is our turn to be there for her.”

John Fairley, owner and breeder of Highfield Princess, added: “What a fantastic mare she has been. An Australian owner commented last year that she was probably the fastest mare in the world.

“To have bred and raced a mare to win three Group One races in five weeks in 2022 was fantastic. We hope that she will make a full recovery and be fit to take up broodmare duties next year.”