Hay List, the brilliant sprinter who won three Group 1 races, over $2.5 million in prizemoney and a legion of fans as Black Caviar’s chief rival, has been put down after an ongoing battle with laminitis, reports Racing Victoria.

The nine-year-old had endured considerable pain in recent times with the condition and John McNair, his trainer, who had kept the retired champion on his property, told The Daily Telegraph that nothing more could be done to relieve the suffering.

“I realised today we are only keeping him going for our sake, not his,’’ McNair said.

“He has been fighting this condition since mid-December and in the last few weeks he was taking two steps forward, five steps back.”

Hay List’s career was brilliant in its own right, as he won 15 of his 28 starts, including the 2012 Newmarket Handicap, the 2010 Manikato Stakes and the 2011 All Aged Stakes.

He built a reputation as an emerging star with eight consecutive wins in Western Australia before he found his way east to McNair’s Gosford stables.

He announced himself as a genuine star when he won the Group 3 Healy Stakes in June 2010 at Eagle Farm by five lengths before claiming three consecutive wins in the Melbourne spring.

However, he was on a collision course with Australia’s greatest ever sprinter, running second behind Black Caviar in the 2011 Lightning StakesTJ Smith, BTC Cup and 2012 Lightning Stakes.

Their battle in the TJ Smith became one of Black Caviar’s iconic moments as Hay List shot three lengths clear of the mare at the top of the Randwick straight. For an instant she looked in trouble, but she overpowered her great rival to claim what was her 12th consecutive win. She would famously go on through 25 starts unbeaten.

WATCH: Hay List’s 2012 Newmarket Handicap win

Hay List’s career has drawn comparisons with that of Australian leg spinner Stuart MacGill, whose Test career paralleled that of Shane Warne.

Had he been born in another era, he could have won a swag of Group 1 races and built a record equal of many of the best.

Beset by hoof problems late in his career, Hay List never rediscovered his best after winning the 2012 Newmarket Handicap with 58.5kg.